Publications (46)
White Paper on Light Sterile Neutrino Searches and Related Phenomenology
M. A. Acero, C. A. Argüelles, M. Hostert +169
This white paper provides a comprehensive review of our present understanding of experimental neutrino anomalies that remain unresolved, charting the progress achieved over the las…
NMR study of the magnetic and metal-insulator transitions in Na0.5CoO2: a nesting scenario
J. Bobroff, G. Lang, H. Alloul +2
Co and Na NMR are used to probe the local susceptibility and charge state of the two Co sites of the Na-ordered orthorhombic Na0.5CoO2. Above T_N=86K, both sites display a similar…
Spin correlations and cobalt charge states: A new phase diagram of sodium cobaltates
G. Lang, J. Bobroff, H. Alloul +2
Using 23Na NMR measurements on sodium cobaltates at intermediate dopings (0.44<=x<=0.62), we establish the qualitative change of behavior of the local magnetic susceptibility at x*…
NQR and X-ray investigation of the structure of NaCoO compound
T. A. Platova, I. R. Mukhamedshin, H. Alloul +2
We have synthesized various samples of the phase of sodium cobaltate NaCoO and performed X-ray powder diffractions spectra to compare the diffraction with the s…
Ga-NMR local susceptibility of the kagome-based magnet SrCr_9pGa_(12-9p)O_19. A high temperature study
L. Limot, P. Mendels, G. Collin +3
We report a high- Ga-NMR study in the kagome-based antiferromagnetic compound SrCrGaO (), and present a refined mean-field analysis of…
Antiferromagnetism in hydrated 123 compounds
A. V. Dooglav, A. V. Egorov, I. R. Mukhamedshin +8
Copper nuclear quadrupole resonance (NQR) and zero field nuclear magnetic resonance (ZFNMR) studies of YBaCuO show that a magnetic phase appears in underdoped 123 s…
Improved TPB-coated Light Guides for Liquid Argon TPC Light Detection Systems
Z. Moss, L. Bugel, G. Collin +5
Scintillation light produced in liquid argon (LAr) must be shifted from 128 nm to visible wavelengths in light detection systems used for liquid argon time-projection chambers (LAr…
Planar 17O NMR study of Pr_yY_{1-y}Ba_2Cu_3O_{6+x}
W. A. MacFarlane, J. Bobroff, P. Mendels +5
We report the planar ^{17}O NMR shift in Pr substituted YBa_{2}Cu_{3}O_{6+x}, which at x=1 exhibits a characteristic pseudogap temperature dependence, confirming that Pr reduces th…
Determination and Control of Oxygen Stoichiometry in the Cuprate Bi2sr2cuo6+D
F. Jean, D. Colson, G. Collin +2
The relatively low Tc of Bi2Sr2CuO6+D allows to study normal-state down to low temperatures and the non-substituted compound is intrinsically strongly overdoped. Hole concentration…
Anomalous Electronic Susceptibility in Bi2sr2cuo6+d
G. Le Bras-Jasmin, Z. Konstantinovic, J. P. Carton +6
We report magnetic susceptibility performed on overdoped Bi2Sr2CuO6+d powders as a function of oxygen doping d and temperature T. The decrease of the spin susceptibility chis with…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report, Volume 4 The DUNE Detectors at LBNF
R. Acciarri, M. A. Acero, M. Adamowski +795
A description of the proposed detector(s) for DUNE at LBNF
Influence of charge order on the magnetic properties of NaCoO for
I. R. Mukhamedshin, H. Alloul, G. Collin +1
We have synthesized and characterized the four different stable phases of Na ordered NaCoO, for . Above 100K they display similar Curie-Weiss spin…
Spinless impurities in high Tc cuprates: Kondo-like behavior
J. Bobroff, W. A. MacFarlane, H. Alloul +4
We compare the effects of in-plane non magnetic Li and Zn impurities on the normal state of high-T cuprates. Y NMR shows that the extra hole introduced by Li is…
The Intermediate Neutrino Program
C. Adams, J. R. Alonso, A. M. Ankowski +186
The US neutrino community gathered at the Workshop on the Intermediate Neutrino Program (WINP) at Brookhaven National Laboratory February 4-6, 2015 to explore opportunities in neut…
Thermopower in Overdoped Region of Cuprates
Z. Konstantinovic, G. Le Bras-Jasmin, D. Colson +4
The thermoelectric power S(T) of single-layer Bi2Sr2CuO6+d is studied as a function of oxygen doping in the strongly overdoped region of the phase diagram (T, d). As other physical…
Magnetic resonance peak and nonmagnetic impurities
Y. Sidis, P. Bourges, B. Keimer +6
Nonmagnetic Zn impurities are known to strongly suppress superconductivity. We review their effects on the spin excitation spectrum in , as investigated by inel…
Normal State Magnetic Properties of Ni and Zn Substituted in YBa_{2}Cu_{3} O_{6+x}: Hole-Doping Dependence
P. Mendels, J. Bobroff, G. Collin +5
We present SQUID susceptibility data on Zn and Ni substituted YBa_{2}Cu_{3}O_{6+x}. Cross-checks with NMR yield an unprecedented accuracy in the estimate of the magnetic susceptibi…
Self-Organized Criticality Effect on Stability: Magneto-Thermal Oscillations in a Granular YBCO Superconductor
L. Legrand, I. Rosenman, R. G. Mints +1
We show that the self-organized criticality of the Bean's state in each of the grains of a granular superconductor results in magneto-thermal oscillations preceding a series of sub…
Evidence of a single nonmagnetic Co3+ state in the Na1CoO2 cobaltate
G. Lang, J. Bobroff, H. Alloul +3
Macroscopic magnetization, muon spin rotation (muSR), and NMR measurements were carried out to study magnetism in the Na1CoO2 cobaltate. Using SQUID measurements, Na1CoO2 is shown…
Anomalous electronic susceptibility in Bi2Sr2CuO6+d and comparison with other overdoped cuprates
G. Le Bras, Z. Konstantinovic, J-P. Carton +6
We report magnetic susceptibility performed on overdoped Bi2Sr2CuO6+d powders as a function of oxygen doping d and temperature T. The decrease of the spin susceptibility with incre…
Series of Bulk Magnetic Phase Transitions in NaxCoO2: a muSR study
P. Mendels, D. Bono, J. Bobroff +8
Using muon spin rotation, well-defined bulk ~ 100% magnetic phases in NaxCoO2 are revealed. A novel magnetic phase is detected for x = 0.85 with the highest transition temperature…
Quantum Impurities and the Neutron Resonance Peak in : Ni versus Zn
Y. Sidis, P. Bourges, H. F. Fong +9
The influence of magnetic (S=1) and nonmagnetic (S=0) impurities on the spin dynamics of an optimally doped high temperature superconductor is compared in two samples with almost i…
Failure of the empirical OCT law in the Bi2Sr2CuO6+d compound
Z. Konstantinovic, G. Le Bras, A. Forget +6
We have studied the evolution of the thermoelectric power S(T) with oxygen doping of single-layered Bi2Sr2CuO6+d thin films and ceramics in the overall superconducting (Tc, S290K)…
The Effects of Dissolved Methane upon Liquid Argon Scintillation Light
B. J. P. Jones, T. Alexander, H. O. Back +6
In this paper we report on measurements of the effects of dissolved methane upon argon scintillation light. We monitor the light yield from an alpha source held 20 cm from a cryoge…
Whitepaper on the DAEdALUS Program
C. Aberle, A. Adelmann, J. Alonso +34
This whitepaper describes the status of the DAEdALUS program for development of high power cyclotrons as of the time of the final meeting of the Division of Particles and Fields 20…
Dynamics of the Local Moment Induced by Nonmagnetic Defects in Cuprates
W. A. MacFarlane, J. Bobroff, H. Alloul +4
We present a study of the spin dynamics of magnetic defects induced by Li substitution of the plane Cu in the normal state of YBaCuO. The fluctuations of the couple…
Absence of static phase separation in the high-Tc cuprate
J. Bobroff, H. Alloul, S. Ouazi +6
We use 89Y NMR in in order to evaluate with high sensitivity the distribution of hole content p in the CuO2 planes. For y=1 and y=0.6, this hole doping distr…
Direct evidence for a dynamical ground state in the highly frustrated TbSnO pyrochlore
F. Bert, P. Mendels, A. Olariu +5
MuSR experiments have been performed on powder sample of the "ordered spin ice" TbSnO pyrochlore compound. At base temperature (T=35mK) the muon relaxation is found to…
Cu NMR evidence for enhanced antiferromagnetic correlations around Zn impurities in YBa2Cu3O6.7
M. -H. Julien, T. Feher, M. Horvatic +5
Doping the high-Tc superconductor YBa2Cu3O6.7 with 1.5 % of non-magnetic Zn impurities in CuO2 planes is shown to produce a considerable broadening of 63Cu NMR spectra, as well as…
Na atomic order, Co charge disproportionation and magnetism in NaCoO for large Na contents
H. Alloul, I. R. Mukhamedshin, G. Collin +1
We have synthesized and characterized four different stable phases of Na ordered NaCoO, for . Above 100 K they display similar Curie-Weiss susceptibilities…
Impurity induced Local Magnetism and Density of States in the superconducting state of YBa2Cu3O7
S. Ouazi, J. Bobroff, H. Alloul +6
Oxygen NMR is used to probe the local influence of nonmagnetic Zn and magnetic Ni impurities in the superconducting state of optimally doped high Tc YBa2Cu3O7. Zn and Ni induce a s…
Antiferromagnetic properties of a water vapor-inserted compound studied by NMR, NQR and SR
A. V. Dooglav, A. V. Egorov, I. R. Mukhamedshin +10
We present a detailed NQR, NMR and SR study of a magnetic phase obtained during a topotactic chemical reaction of YBaCuO high- temperature superconductor wi…
Susceptibility and dilution effects of the kagome bi-layer geometrically frustrated network. A Ga-NMR study of SrCr_(9p)Ga_(12-9p)O_(19)
L. Limot, P. Mendels, G. Collin +5
We present an extensive gallium NMR study of the geometrically frustrated kagome bi-layer compound SrCr_(9p)Ga_(12-9p)O_(19) (Cr^3+, S=3/2) over a broad Cr-concentration range (.72…
SR study of the quantum dynamics in the frustrated kagome bilayers
David Bono, P. Mendels, G. Collin +5
We present SR experiments in the kagome bilayer compound BaSnZnGaCrO (BSZCGO) and compare it to the isostructural SrCrGa…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects
R. Acciarri, M. A. Acero, M. Adamowski +795
This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline…
SrIrO magnetic phase diagram, from resistivity
L. Fruchter, G. Collin, D. Colson +1
We show that, contrary to previous belief, the transition to the antiferromagnetic state of SrIrO in zero magnetic field does show up in the transverse resistivity. We attr…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
DUNE Collaboration, R. Acciarri, M. A. Acero +796
The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described.
Persistence of Li Induced Kondo Moments in the Superconducting State of Cuprates
J. Bobroff, H. Alloul, W. A. MacFarlane +4
We measure the magnetic susceptibility nearby Li spinless impurities in the superconducting phase of the high Tc cuprate YBaCuO. The induced moment which was found to exist above T…
The Single-Phase ProtoDUNE Technical Design Report
B. Abi, R. Acciarri, M. A. Acero +824
ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a cr…
23Na NMR study of sodium order in NaxCoO2 with 22K Neel temperature
H. Alloul, I. R. Mukhamedshin, A. V. Dooglav +4
We report a systematic study of the lattice parameter in the NaCoO phases versus Na content , in which sodium always displays ordered arrangements. This allo…
LAr1-ND: Testing Neutrino Anomalies with Multiple LArTPC Detectors at Fermilab
C. Adams, C. Andreopoulos, J. Asaadi +47
This white paper describes LAr1-ND and the compelling physics it brings first in Phase 1 and next towards the full LAr1 program. In addition, LAr1-ND serves as a key step in the de…
89Y NMR Probe of Zn Induced Local Magnetism in YBa2(Cu(1-y)Zn(y))3O(6+x)
A. V. Mahajan, H. Alloul, G. Collin +1
We present detailed data and analysis of the effects of Zn substitution on the planar Cu site in YBaCuO (YBCO) as evidenced from our Y NMR measuremen…
23Na NMR Evidence for Charge Order and Anomalous Magnetism in NaxCoO2
I. R. Mukhamedchine, H. Alloul, G. Collin +1
We have compared by Na NMR and magnetic susceptibility the magnetic properties of oriented powder samples of NaCoO compounds. The NMR spectra are found identical…
Thermopower in the strongly overdoped region of single-layer Bi2Sr2CuO6+d superconductor
Z. Konstantinovic, G. Le Bras, A. Forget +5
The evolution of the thermoelectric power S(T) with doping, p, of single-layer Bi2Sr2CuO6+d ceramics in the strongly overdoped region is studied in detail. Analysis in term of drag…
59Co NMR study of the Co states in superconducting and anhydrous cobaltates
I. R. Mukhamedshin, H. Alloul, G. Collin +1
Co NMR spectra in oriented powders of NaCoO and in its hydrated superconducting phase (HSC) NaCoO,1.3HO reveal a single electronic Co sta…
Ga NMR study of the local susceptibility in SrCr8Ga4O19: pseudogap and paramagnetic defects
P. Mendels, A. Keren, L. Limot +3
We present the first Ga(4f) NMR study of the Cr susceptibility in the archetype of Kagome based frustrated antiferromagnets, SrCrGaO. Our major finding is that t…