Publications (100)
Geant4-based electromagnetic background model for the CRESST dark matter experiment
CRESST Collaboration, A. H. Abdelhameed, G. Angloher +51
The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off…
The CRESST Dark Matter Search - Status and Perspectives
The CRESST Collaboration, F. Reindl, G. Angloher +38
In the past years the spotlight of the search for dark matter particles widened to the low mass region, both from theoretical and experimental side. We discuss results from data ob…
Observation of a Triangular to Square Flux Lattice Phase Transition in YBCO
S. P. Brown, D. Charalambous, E. C. Jones +3
We have used the technique of small-angle neutron scattering to observe magnetic flux lines directly in an YBCO single crystal at fields higher than previously reported. For field…
Performance of a CRESST-II Detector Module with True -veto
G. Angloher, P. Bauer, A. Bento +42
Scintillating, cryogenic bolometers are widely used in the field of rare event searches. Their main advantages are an excellent energy resolution and particle identification on an…
Description of CRESST-II and CRESST-III pulse shape data
G. Angloher, S. Banik, D. Bartolot +62
A set of data from 68 cryogenic detectors operated in the CRESST dark matter search experiment between 2013 and 2019 was collected and labeled to train binary classifiers for data…
Limits on momentum-dependent asymmetric dark matter with CRESST-II
G. Angloher, A. Bento, C. Bucci +37
The usual assumption in direct dark matter searches is to only consider the spin-dependent or spin-independent scattering of dark matter particles. However, especially in models wi…
Electronic structure of Pr_{2-x}Ce_xCuO_4 studied via ARPES and LDA+DMFT+Σ_k
I. A. Nekrasov, N. S. Pavlov, E. Z. Kuchinskii +10
The electron-doped Pr(2-x)Ce(x)CuO(4) (PCCO) compound in the pseudogap regime (x~0.15) was investigated using angle-resolved photoemission spectroscopy (ARPES) and the generalized…
Fermi Surface Evolution in an Electron-Doped High-Tc Superconductor Revealed by Magnetic Quantum Oscillations
T. Helm, M. V. Kartsovnik, M. Bartkowiak +5
We report on the direct probing of the Fermi surface in the bulk of the electron-doped superconductor NdCeCuO at different doping levels by means of magnetoresistan…
Latest observations on the low energy excess in CRESST-III
G. Angloher, S. Banik, G. Benato +57
The CRESST experiment observes an unexplained excess of events at low energies. In the current CRESST-III data-taking campaign we are operating detector modules with different desi…
First-Order Type Effects in YBaCuO at the Onset of Superconductivity
L. Tassini, W. Prestel, A. Erb +2
We present results of Raman scattering experiments on tetragonal for doping levels between 0 and 0.07 holes/CuO. Below the o…
Description of CRESST-II data
G. Angloher, P. Bauer, A. Bento +47
In Phase 2 of CRESST-II 18 detector modules were operated for about two years (July 2013 - August 2015). Together with this document we are publishing data from two detector module…
Energy-Dependent Light Quenching in CaWO Crystals at mK Temperatures
R. Strauss, G. Angloher, A. Bento +39
Scintillating CaWO single crystals are a promising multi-element target for rare-event searches and are currently used in the direct Dark Matter experiment CRESST (Cryogenic Ra…
Droplet-like Fermi surfaces in the anti-ferromagnetic phase of EuFeAs, an Fe-pnictide superconductor parent compound
S. de Jong, E. van Heumen, S. Thirupathaiah +15
Using angle resolved photoemission it is shown that the low lying electronic states of the iron pnictide parent compound EuFeAs are strongly modified in the magnetically or…
Pair breaking versus symmetry breaking: Origin of the Raman modes in superconducting cuprates
N. Munnikes, B. Muschler, F. Venturini +9
We performed Raman experiments on superconducting (Bi-2212) and (Y-123) single crystals. These results…
Magnetic-field-induced nonlocal effects on the vortex interactions in twin-free YBa2Cu3O7
J. S. White, R. W. Heslop, A. T. Holmes +8
The vortex lattice (VL) in the high-kappa superconductor YBa2Cu3O7, at 2 K and with the magnetic field parallel to the crystal c-axis, undergoes a sequence of transitions between d…
Scaling of the Hall Resistivity in the Solid and Liquid Vortex Phases in Twinned Single Crystal YBCO
G. D'Anna, V. Berseth, L. Forro +2
Longitudinal and Hall voltages are measured in a clean twinned YBCO single crystal in the liquid and solid vortex phases. For magnetic fields tilted away from the c-axis more than…
Emergence of pseudogap from short-range spin-correlations in electron doped cuprates
F. Boschini, M. Zonno, E. Razzoli +13
Electron interactions are pivotal for defining the electronic structure of quantum materials. In particular, the strong electron Coulomb repulsion is considered the keystone for de…
Influence of Annealing on the Optical and Scintillation Properties of CaWO Single Crystals
M. v. Sivers, C. Ciemniak, A. Erb +12
We investigate the influence of oxygen annealing on the room temperature optical and scintillation properties of CaWO single crystals that are being produced for direct Dark Ma…
Results on sub-GeV Dark Matter from a 10 eV Threshold CRESST-III Silicon Detector
CRESST Collaboration, G. Angloher, S. Banik +59
We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g t…
New features in the microwave response of YBCO crystals: Evidence for a multi-component order parameter
H. Srikanth, Balam A. Willemsen, T. Jacobs +4
New features are reported in precision measurements of the complex microwave conductivity of high quality crystals grown in crucibles. A third p…
Dark-Photon Search using Data from CRESST-II Phase 2
G. Angloher, P. Bauer, A. Bento +40
Identifying the nature and origin of dark matter is one of the major challenges for modern astro and particle physics. Direct dark-matter searches aim at an observation of dark-mat…
Optimisation of TES design for the CRESST experiment
G. Angloher, S. Banik, A. Bento +54
The CRESST experiment aims at the direct detection of sub-GeV dark matter particles via elastic scattering off nuclei in different target crystals at cryogenic temperatures. The ad…
Description of CRESST-III Data
CRESST Collaboration, A. H. Abdelhameed, G. Angloher +47
In CRESST-III, 10 cryogenic detector modules optimized for low energy thresholds were operated for almost two years (May 2016 - February 2018). Together with this document we are p…
Magnetic torque study of the temperature dependent anisotropy parameter in overdoped superconducting single-crystal YBa_2Cu_3O_7
S. Bosma, S. Weyeneth, R. Puzniak +3
An overdoped YBa2Cu3O7 single crystal was studied by SQUID and torque magnetometry in order to investigate the temperature dependence of the anisotropy parameter close to the trans…
High magnetic field studies of the Vortex Lattice structure in YBa2Cu3O7
A. S. Cameron, J. S. White, A. T. Holmes +6
We report on small angle neutron scattering measurements of the vortex lattice in twin-free YBa2Cu3O7, extending the previously investigated maximum field of 11~T up to 16.7~T with…
EXCESS workshop: Descriptions of rising low-energy spectra
P. Adari, A. Aguilar-Arevalo, D. Amidei +303
Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the signifi…
Unadulterated spectral function of low energy quasiparticles: Bi-2212, nodal direction
D. V. Evtushinsky, A. A. Kordyuk, S. V. Borisenko +8
Fitting the momentum distribution photoemission spectra to the Voigt profile appears to be a robust procedure to purify the interaction effects from the experimental resolution. In…
Origin of the Hall conductivity below the vortex-lattice melting in twinned single crystal YBCO
G. D'Anna, V. Berseth, L. Forro +2
In his the Comment, P. Ao affirms that his vortex many-body theory explains the observations reported in G. D'Anna et al., Phys. Rev. Lett. 81, 2530 (1998). Indeed, we provide here…
Description of CRESST-III lithium aluminate data
G. Angloher, S. Banik, G. Benato +58
Two detector modules with lithium aluminate targets were operated in the CRESST underground setup between February and June 2021. The data collected in this period was used to set…
The CRESST experiment: towards the next-generation of sub-GeV direct dark matter detection
G. Angloher, S. Banik, A. Bento +54
Direct detection experiments have established the most stringent constraints on potential interactions between particle candidates for relic, thermal dark matter and Standard Model…
Impact of Coherent Neutrino Nucleus Scattering on Direct Dark Matter Searches based on CaWO Crystals
A. Gütlein, G. Angloher, A. Bento +37
Atmospheric and solar neutrinos scattering coherently off target nuclei will be an important background source for the next generation of direct dark matter searches. In this work…
Low-energy spin dynamics and critical hole concentrations in LaSrCuO () revealed by La and Cu nuclear magnetic resonance
S. -H. Baek, A. Erb, B. Büchner
We report a comprehensive La and Cu nuclear magnetic resonance study on LaSrCuO () single crystals. The La spin-lattice…
Experimental evidence for Zeeman spin-orbit coupling in layered antiferromagnetic conductors
R. Ramazashvili, P. D. Grigoriev, T. Helm +9
Most of solid-state spin physics arising from spin-orbit coupling, from fundamental phenomena to industrial applications, relies on symmetry-protected degeneracies. So does the Zee…
A detector module with highly efficient surface-alpha event rejection operated in CRESST-II Phase 2
R. Strauss, G. Angloher, A. Bento +39
The cryogenic dark matter experiment CRESST-II aims at the direct detection of WIMPs via elastic scattering off nuclei in scintillating CaWO crystals. We present a new, highly…
Beta/gamma and alpha backgrounds in CRESST-II Phase 2
R. Strauss, G. Angloher, A. Bento +38
The experiment CRESST-II aims at the detection of dark matter with scintillating CaWO crystals operated as cryogenic detectors. Recent results on spin-independent WIMP-nucleon…
Physical origin of the buckling in CuO: Electron-phonon coupling and Raman spectra
M. Opel, R. Hackl, T. P. Devereaux +6
It is shown theoretically that the buckling of the CuO planes in certain cuprate systems can be explained in terms of an electric field across the planes which originates fro…
Fermi Surface of the Electron-doped Cuprate Superconductor Nd_{2-x}Ce_xCuO_{4} Probed by High-Field Magnetotransport
M. V. Kartsovnik, T. Helm, C. Putzke +10
We report on the study of the Fermi surface of the electron-doped cuprate superconductor NdCeCuO by measuring the interlayer magnetoresistance as a function of th…
High-Dimensional Bayesian Likelihood Normalisation for CRESST's Background Model
G. Angloher, S. Banik, G. Benato +59
Using CaWO crystals as cryogenic calorimeters, the CRESST experiment searches for nuclear recoils caused by the scattering of potential Dark Matter particles. A reliable identi…
Inhomogeneous slowing down of spin fluctuations induced by charge stripe order in 1/8-doped lanthanum cuprates
S. -H. Baek, M. Hücker, A. Erb +3
We report La nuclear magnetic resonance (NMR) measurements on LaSrCuO () and LaBaCuO () single crystals, focusi…
Observation of a first-order phase transition deep within the vortex-solid region of YBa2Cu3O7
M. Reibelt, S. Weyeneth, A. Erb +1
We have investigated the magnetic phase diagram of a fully oxygenated detwinned YBa2Cu3O7 single crystal by means of magneto-caloric and magnetization measurements, and found therm…
Vortex lock-in transition coinciding with the 3D to 2D crossover in YBa2Cu3O7
S. Bosma, S. Weyeneth, R. Puzniak +2
A vortex lock-in transition was directly detected by torque magnetometry in an overdoped YBa2Cu3O7 single crystal of low anisotropy (\approx 7). The locked-in state was observed be…
Cryogenic characterization of a LiAlO crystal and new results on spin-dependent dark matter interactions with ordinary matter
A. H. Abdelhameed, G. Angloher, P. Bauer +56
In this work, a first cryogenic characterization of a scintillating LiAlO single crystal is presented. The results achieved show that this material holds great potential as a…
Quantitative comparison of single- and two-particle properties in the cuprates
W. Prestel, F. Venturini, B. Muschler +10
We explore the strong variations of the electronic properties of copper-oxygen compounds across the doping phase diagram in a quantitative way. To this end we calculate the electro…
In-situ study of light production and transport in phonon/light detector modules for dark matter search
M. Kiefer, G. Angloher, A. Bento +38
The CRESST experiment (Cryogenic Rare Event Search with Superconducting Thermometers) searches for dark matter via the phonon and light signals of elastic scattering processes in s…
Effect of doping on the linear temperature dependence of the magnetic penetration depth in cuprate superconductors
J. Le Cochec, G. Lamura, A. Gauzzi +5
We report on measurements of the low temperature dependence of the magnetic penetration depth lambda_ab in several single crystals of La_2-xSr_xCuO_4, Bi_2Sr_2CaCu_2O_8 and YBa_2Cu…
Onset of dielectric modes at 110K and 60K due to local lattice distortions in non-superconducting YBa_{2}Cu_{3}O_{6.0} crystals
Z. Zhai, P. V. Parimi, J. B. Sokoloff +2
We report the observation of two dielectric transitions at 110K and 60K in the microwave response of non-superconducting YBa_{2}Cu_{3}O_{6.0} crystals. The transitions are characte…
Unravelling the glue and the competing order in superconducting cuprates
S. Caprara, C. Di Castro, B. Muschler +6
We present Raman scattering experiments in single crystals at various doping levels x and compare the results with theoretical predictions obtained assumi…
Observation of a low energy nuclear recoil peak in the neutron calibration data of an AlO crystal in CRESST-III
CRESST Collaboration, G. Angloher, S. Banik +59
The current generation of cryogenic solid state detectors used in direct dark matter and CE\textnu NS searches typically reach energy thresholds of (10)eV for nucl…
Light Dark Matter Search Using a Diamond Cryogenic Detector
CRESST Collaboration, G. Angloher, S. Banik +56
Diamond operated as a cryogenic calorimeter is an excellent target for direct detection of low-mass dark matter candidates. Following the realization of the first low-threshold cry…
Epitaxy of Fe3O4 on Si(001) by pulsed laser deposition using a TiN/MgO buffer layer
D. Reisinger, M. Schonecke, T. Brenninger +4
Epitaxy of oxide materials on silicon (Si) substrates is of great interest for future functional devices using the large variety of physical properties of the oxides as ferroelectr…
ImpCresst -- A versatile simulation tool focusing on solid-state detectors at keV energies
G. Angloher, S. Banik, A. Bento +57
We present ImpCresst, a Geant4-based Monte Carlo tool to simulate backgrounds from natural and cosmogenic radionuclides, and calibration signals in solid-state detectors and their…
La NMR investigation in underdoped LaSrCuO
S. -H. Baek, A. Erb, B. Büchner +1
We report La and Cu nuclear magnetic and quadrupole resonance (NMR/NQR) studies in an underdoped LaSrCuO single crystal, focusing on the $^{139…
Microwave Absorption Peaks : Signatures of Spin Dynamics in Cuprates
S. Sridhar, Z. Zhai, A. Erb
We show that a common feature of temperature-dependent microwave absorption is the presence of absorption peaks. loss peaks can arise when the internal -dependent magnetic…
Secular Equilibrium Assessment in a Target Crystal from the Dark Matter Experiment CRESST using Bayesian Likelihood Normalisation
G. Angloher, S. Banik, G. Benato +58
CRESST is a leading direct detection sub- dark matter experiment. During its second phase, cryogenic bolometers were used to detect nuclear recoils off the $\ma…
Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III
G. Angloher, S. Banik, G. Benato +58
In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the CRE…
Results on light dark matter particles with a low-threshold CRESST-II detector
The CRESST Collaboration, G. Angloher, A. Bento +38
The CRESST-II experiment uses cryogenic detectors to search for nuclear recoil events induced by the elastic scattering of dark matter particles in CaWO crystals. Given the low…
Hall Anomaly and Vortex-Lattice Melting in Superconducting Single Crystal YBa2Cu3O7-d
G. D'Anna, V. Berseth, L. Forro +2
Sub-nanovolt resolution longitudinal and Hall voltages are measured in an ultra pure YBa2Cu3O7-d single crystal. The Hall anomaly and the first-order vortex-lattice melting transit…
Detector development for the CRESST experiment
G. Angloher, S. Banik, G. Benato +55
Recently low-mass dark matter direct searches have been hindered by a low energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment…
First observation of single photons in a CRESST detector and new dark matter exclusion limits
CRESST Collaboration, G. Angloher, S. Banik +56
The main goal of the CRESST-III experiment is the direct detection of dark matter particles via their scattering off target nuclei in cryogenic detectors. In this work we present t…
Limits on Dark Matter Effective Field Theory Parameters with CRESST-II
G. Angloher, P. Bauer, A. Bento +42
CRESST is a direct dark matter search experiment, aiming for an observation of nuclear recoils induced by the interaction of dark matter particles with cryogenic scintillating calc…
Carrier relaxation, pseudogap, and superconducting gap in high-Tc cuprates: A Raman scattering study
M. Opel, R. Nemetschek, C. Hoffmann +9
We describe results of electronic Raman-scattering experiments in differently doped single crystals of Y-123 and Bi-2212. The comparison of AF insulating and metallic samples sugge…
DoubleTES detectors to investigate the CRESST low energy background: results from above-ground prototypes
G. Angloher, S. Banik, G. Benato +55
In recent times, the sensitivity of low-mass direct dark matter searches has been limited by unknown low energy backgrounds close to the energy threshold of the experiments known a…
First results on sub-GeV spin-dependent dark matter interactions with Li
A. H. Abdelhameed, G. Angloher, P. Bauer +53
In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region…
Results on low mass WIMPs using an upgraded CRESST-II detector
CRESST Collaboration, G. Angloher, A. Bento +42
The CRESST-II cryogenic dark matter search aims for the detection of WIMPs via elastic scattering off nuclei in CaWO crystals. We present results from a low-threshold analysis…
The oxygen isotope effect in the ab-plane reflectance of underdoped YBa_2Cu_3O_{7-delta}
N. L. Wang, T. Timusk, J. P. Franck +3
We have measured the effect of oxygen isotope substitution on the ab-plane reflectance of underdoped YBCO. The frequency shift of the transverse optic phonons due to the substituti…
Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2-xCoxAs2 from angle-resolved photoemission spectroscopy
S. Thirupathaiah, S. de Jong, R. Ovsyannikov +12
From a combination of high resolution angle-resolved photoemission spectroscopy and density functional calculations, we show that BaFe2As2 possesses essentially two-dimensional ele…
First results from the CRESST-III low-mass dark matter program
CRESST Collaboration, A. H. Abdelhameed, G. Angloher +47
The CRESST experiment is a direct dark matter search which aims to measure interactions of potential dark matter particles in an earth-bound detector. With the current stage, CRESS…
Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III Experiment
CRESST Collaboration, G. Angloher, S. Banik +58
New-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 eV, much lower than the energies of commonly used X-ray calibration…
Magnetostriction and magneto-structural domains in antiferromagnetic YBaCuO
B. Nafradi, T. Keller, F. Hardy +3
We have used high-resolution neutron Larmor diffraction and capacitative dilatometry to investigate spontaneous and forced magnetostriction in undoped, antiferromagnetic YBaCu$…
Probing low WIMP masses with the next generation of CRESST detector
The CRESST Collaboration, G. Angloher, A. Bento +35
The purpose of this document is to describe the upgrade of the CRESST dark matter search at LNGS. The proposed strategy will allow to explore a region of the parameter space for sp…
Femtosecond Quasiparticle and Phonon Dynamics in Superconducting YBa2Cu3O7 Studied by Wideband Terahertz Spectroscopy
A. Pashkin, M. Porer, M. Beyer +10
We measure the anisotropic mid-infrared response of electrons and phonons in bulk YBa2Cu3O7 after femtosecond photoexcitation. A line shape analysis of specific lattice modes revea…
Towards an automated data cleaning with deep learning in CRESST
G. Angloher, S. Banik, D. Bartolot +62
The CRESST experiment employs cryogenic calorimeters for the sensitive measurement of nuclear recoils induced by dark matter particles. The recorded signals need to undergo a caref…
Structural and doping effects in the half-metallic double perovskite CrWO
J. B. Philipp, P. Majewski, L. Alff +9
he structural, transport, magnetic and optical properties of the double perovskite CrWO with have been studied. By varying the alkaline earth ion on…
Search for low-mass Dark Matter with the CRESST Experiment
H. Kluck, G. Angloher, P. Bauer +42
CRESST is a multi-stage experiment directly searching for dark matter (DM) using cryogenic crystals. Previous stages established leading limits for the spin-indep…
Fermi surface and order parameter driven vortex lattice structure transitions in twin-free YBa2Cu3O7
J. S. White, V. Hinkov, R. W. Heslop +12
We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppres…
Correlation between Fermi surface transformations and superconductivity in the electron-doped high- superconductor NdCeCuO
T. Helm, M. V. Kartsovnik, C. Proust +11
Two critical points have been revealed in the normal-state phase diagram of the electron-doped cuprate superconductor NdCeCuO by exploring the Fermi surface propert…
Radiopurity of CaWO Crystals for Direct Dark Matter Search with CRESST and EURECA
A. Münster, M. v. Sivers, G. Angloher +38
The direct dark matter search experiment CRESST uses scintillating CaWO single crystals as targets for possible WIMP scatterings. An intrinsic radioactive contamination of the…
New Limits on Double Electron Capture of Ca and W
G. Angloher, M. Bauer, P. Bauer +53
We analyzed low-background data from the CRESST-II experiment with a total net exposure of 730 kg days to extract limits on double electron capture processes. We established new li…
Effect of Zn and Ni impurities on the quasiparticle renormalization in Bi-2212
V. B. Zabolotnyy, S. V. Borisenko, A. A. Kordyuk +10
The Cu substitution by Zn and Ni impurities and its influence on the mass renormalization effects in angle resolved photoelectron spectra (ARPES) of Bi-2212 is addressed. We show t…
Observation of d-wave scaling relations in the mixed-state specific heat of YBa2Cu3O7
B. Revaz, J. -Y. Genoud, A. Junod +2
The low temperature specific heat C(B,T) of an YBa2Cu3O7.00 single crystal is measured from 1.2 to 10 K in magnetic fields up to 14 T. The anisotropic component Caniso(T,B)=C(T,B//…
Mid-infrared absorption in YBa2Cu3O6: Failure of spin-wave theory in undoped cuprates?
M. Grueninger, D. van der Marel, A. Damascelli +4
The optical conductivity sigma (omega) of undoped YBa2Cu3O6 is studied in detail in the mid-infrared range. Substitutions on all but the Ba site are used to identify the prominent…
Probing superconducting order in overdoped CaYBaCuO by neutron diffraction measurements of the vortex lattice
A. S. Cameron, E. Campillo, A. Alshemi +13
We present small angle neutron scattering studies of the magnetic vortex lattice (VL) in CaYBaCuO up to a field of 16.7 T, and CaY$_{0.…
Magnetic moments of W 5d in Ca2CrWO6 and Sr2CrWO6 double perovskites
P. Majewski, S. Gepraegs, A. Boger +9
We have investigated the magnetic moment of the W ion in the ferrimagnetic double perovskites Sr2CrWO6 and Ca2CrWO6 by X-ray magnetic circular dichroism (XMCD) at the W L(2,3) edge…
A likelihood framework for cryogenic scintillating calorimeters used in the CRESST dark matter search
CRESST Collaboration, G. Angloher, S. Banik +57
Cryogenic scintillating calorimeters are ultrasensitive particle detectors for rare event searches, particularly for the search for dark matter and the measurement of neutrino prop…
Probing spin-dependent dark matter interactions with Li
G. Angloher, G. Benato, A. Bento +55
CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c mass. One of the advantages of the CRESST experiment is the possibilit…
Optimal operation of cryogenic calorimeters through deep reinforcement learning
G. Angloher, S. Banik, G. Benato +59
Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to light dark matter-nucleus scattering in current direct detection dark matter searches. In su…
Observation of out-of-phase bilayer plasmons in YBa_2Cu_3O_7-delta
M. Grueninger, D. van der Marel, A. A. Tsvetkov +1
The temperature dependence of the c-axis optical conductivity Ï(Ï) of optimally and overdoped YBa_2Cu_3O_x (x=6.93 and 7) is reported in the far- (FIR) and mid-infrared (MIR) ran…
Electron interactions and charge ordering in LaSrCuO
B. Muschler, W. Prestel, L. Tassini +9
We present results of inelastic light scattering experiments on single-crystalline LaSrCuO in the doping range and TlBaCuO$_{6+δ}…
Enhanced Electron-Phonon Coupling and its Irrelevance to High T Superconductivity
T. P. Devereaux, A. Virosztek, A. Zawadowski +10
It is argued that the origin of the buckling of the CuO planes in certain cuprates as well as the strong electron-phonon coupling of the phonon is due to the electri…
First results on low-mass dark matter from the CRESST-III experiment
CRESST collaboration, F. Petricca, G. Angloher +43
The CRESST experiment, located at Laboratori Nazionali del Gran Sasso in Italy, searches for dark matter particles via their elastic scattering off nuclei in a target material. The…
An Investigation of Particle-Hole Asymmetry in the Cuprates via Electronic Raman Scattering
B. Moritz, S. Johnston, T. P. Devereaux +7
In this paper we examine the effects of electron-hole asymmetry as a consequence of strong correlations on the electronic Raman scattering in the normal state of copper oxide high…
Results on MeV-scale dark matter from a gram-scale cryogenic calorimeter operated above ground
G. Angloher, P. Bauer, A. Bento +44
Models for light dark matter particles with masses below 1 GeV/c are a natural and well-motivated alternative to so-far unobserved weakly interacting massive particles. Gram-sc…
Low-Temperature Scintillation Properties of CaWO4 Crystals for Rare-Event Searches
M. v. Sivers, M. Clark, P. C. F. Di Stefano +13
In prospect of its application in cryogenic rare-event searches, we have investigated the low-temperature scintillation properties of CaWO4 crystals down to 3.4 K under α and γ e…
Deviations from the extended London model at high magnetic fields in YBaCuO
E. Campillo, M. Bartkowiak, R. Riyat +8
We report on the evolution with magnetic field and temperature of the vortex lattice (VL) in fully-oxygenated YBa2Cu3O7 as studied by time-of-flight small angle neutron scattering.…
A prototype detector for the CRESST-III low-mass dark matter search
R. Strauss, G. Angloher, P. Bauer +28
The CRESST-III experiment which is dedicated to low-mass dark matter search uses scintillating CaWO crystals operated as cryogenic particle detectors. Background discrimination…
Epitaxial growth and transport properties of SrCrWO thin films
J. B. Philipp, D. Reisinger, M. Schonecke +5
We report on the preparation and characterization of epitaxial thin films of the double-perovskite SrCrWO by Pulsed Laser Deposition (PLD). On substrates with low lattice m…
Systematics of two-component superconductivity in from microwave measurements of high quality single crystals
H. Srikanth, Z. Zhai, S. Sridhar +2
Systematic microwave surface impedance measurements of YBCO single crystals grown in crucibles reveal new properties that are not directly seen in similar measurements of…
Sub-unit cell layer-by-layer growth of Fe3O4, MgO, and Sr2RuO4 thin films
D. Reisinger, B. Blass, J. Klein +5
The use of oxide materials in oxide electronics requires their controlled epitaxial growth. Recently, it was shown that Reflection High Energy Electron Diffraction (RHEED) allows t…
Observation of coherent Josephson response in the non-linear ab-plane microwave impedance of single crystals
Z. Zhai, H. Srikanth, S. Sridhar +3
We report novel non-linear phenomena in the -plane microwave impedance of single crystals. The vs. data are well described by the non-linear…
Magnetic Breakdown in the electron-doped cuprate superconductor NdCeCuO: the reconstructed Fermi surface survives in the strongly overdoped regime
T. Helm, M. V. Kartsovnik, I. Sheikin +8
We report on semiclassical angle-dependent magnetoresistance oscillations (AMRO) and the Shubnikov-de Haas effect in the electron-overdoped cuprate superconductor NdCeC…