2.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH630 papers
- Paul Scherrer InstituteCH136 papers
- École Polytechnique Fédérale de LausanneCH61 papers
- University of ZurichCH45 papers
- University of RegensburgDE44 papers
- Institute of PhysicsPL39 papers
- Centre National de la Recherche ScientifiqueFR37 papers
- Swiss Light Source37 papers
- Polish Academy of SciencesPL36 papers
- P.L. Kapitza Institute for Physical ProblemsRU26 papers
- National Institute for Materials ScienceJP25 papers
- University of GenevaCH23 papers
43 papers · 1 filter
Spectral and thermodynamic properties of a strong-leg quantum spin ladder
D. Schmidiger, P. Bouillot, S. Muhlbauer +4
The strong-leg S=1/2 Heisenberg spin ladder system (C7H10N)2CuBr4 is investigated using Density Matrix Renormalization Group (DMRG) calculations, inelastic neutron scattering, and…
Magnetic phase diagram of the frustrated S=1/2 chain magnet LiCu_2O_2
A. A. Bush, V. N. Glazkov, M. Hagiwara +7
We present the results of the magnetization and dielectric constant measurements on untwinned single crystal samples of the frustrated S=1/2 chain cuprate LiCu_2O_2. Novel magnetic…
Disorder instability of the magnon condensate in a frustrated spin ladder
E. Wulf, S. Mühlbauer, T. Yankova +1
The effect of disorder is studied on the field-induced quantum phase transition in the frustrated spin-ladder compound H8C4SO2Cu2(Cl[1-x]Brx)4 using bulk magnetic and thermodynamic…
Anisotropic spin relaxation revealed by resonant spin amplification in (110) GaAs quantum wells
M. Griesbeck, M. M. Glazov, E. Ya. Sherman +4
We have studied spin dephasing in a high-mobility two-dimensional electron system (2DES), confined in a GaAs/AlGaAs quantum well grown in the [110] direction, using the resonant sp…
Ultrastrong coupling of the cyclotron transition of a two-dimensional electron gas to a THz metamaterial
Giacomo Scalari, Curdin Maissen, Dana Turcinková +8
Artificial cavity photon resonators with ultrastrong light-matter interactions are attracting interest both in semiconductor and superconducting systems, due to the possibility of…
Crystals for neutron scattering studies of quantum magnetism
T. Yankova, D. Huvonen, S. Muhlbauer +8
We review a strategy for targeted synthesis of large single crystal samples of prototype quantum magnets for inelastic neutron scattering experiments. Four case studies of organic…
Correlated trends of coexisting magnetism and superconductivity in optimally electron-doped oxy-pnictides
S. Sanna, P. Carretta, P. Bonfà +7
We report on the recovery of the short-range static magnetic order and on the concomitant degradation of the superconducting state in optimally F-doped SmFe_(1-x)Ru_(x)AsO_0.85F_0.…
Incommensurate Magnetic Order in TbTe
F. S. Pfuner, S. N. Gvasaliya, O. Zaharko +6
We report a neutron diffraction study of the magnetic phase transitions in the charge-density-wave (CDW) TbTe compound. We discover that in the paramagnetic phase there are str…
Magnetic order and transitions in the spin-web compound Cu3TeO6
Martin Mansson, Krunoslav Prsa, Jun Sugiyama +3
The spin-web compound Cu3TeO6, belongs to an intriguing group of materials where magnetism is governed by 3d9 copper Cu2+ ions. This compound has been sparsely experimentally studi…
Magnetic order and frustrated dynamics in Li(Ni0.8Co0.1Mn0.1)O2: a study by μ+SR and SQUID magnetometry
J. Magnus Wikberg, Martin Mansson, Mohammed Dahbi +2
Recently, the mixed transition metal oxides of the form Li(Ni1-y-zCoyMnz)O2, have become the center of attention as promising candidates for novel battery material. These materials…
Microscopic Magnetic Nature of the Quasi-one-Dimensional Antiferromagnet BaCo2V2O8
M. Mansson, K. Prsa, J. Sugiyama +5
The title compound belongs to a wide group of quasi-one-dimensional (Q1D) antiferromagnets (AF) and its Co2+ ions form Q1D screw-chains along the c-axis. We here present the first…
Long- to short-range magnetic order in fluorine-doped CeFeAsO
T. Shiroka, G. Lamura, S. Sanna +13
The evolution of the antiferromagnetic order parameter in CeFeAsO_{1-x}F_{x} as a function of the fluorine content x was investigated primarily via zero-field muon-spin spectroscop…
Imaging the lateral shift of a quantum-point contact using scanning-gate microscopy
S. Schnez, C. Rössler, T. Ihn +3
We perform scanning-gate microscopy on a quantum-point contact. It is defined in a high-mobility two-dimensional electron gas of an AlGaAs/GaAs heterostructure, giving rise to a we…
Imaging Flux Vortices in MgB2 using Transmission Electron Microscopy
J. C. Loudon, C. J. Bowell, N. D. Zhigadlo +2
We report the successful imaging of flux vortices in single crystal MgB2 using transmission electron microscopy. The specimen was thinned to electron transparency (350 nm thickness…
Continuous magnetic and structural phase transitions in Fe1+yTe
I. A. Zaliznyak, Z. J. Xu, J. S. Wen +7
We report a sequence of continuous phase transformations in iron telluride, Fe1+yTe (y~0.1), which is observed by combining neutron diffraction, magnetic susceptibility, and specif…
Double-k phase of the Dzyaloshinskii-Moriya helimagnet Ba2CuGe2O7
S. Mühlbauer, S. N. Gvasaliya, E. Pomjakushina +1
Neutron diffraction is used to re-investigate the magnetic phase diagram of the noncentrosymmetric tetragonal antiferromagnet Ba2CuGe2O7. A novel incommensurate double-k magnetic p…
Interplay of composition, structure, magnetism, and superconductivity in SmFeAs1-xPxO1-y
N. D. Zhigadlo, S. Katrych, M. Bendele +12
Polycrystalline samples and single crystals of SmFeAs1-xPxO1-y were synthesized and grown employing different synthesis methods and annealing conditions. Depending on the phosphoru…
Interplay between magnetism and superconductivity in EuFe(2-x)Co(x)As2 studied by 57Fe and 151Eu Mössbauer spectroscopy
A. Blachowski, K. Ruebenbauer, J. Zukrowski +4
The compound EuFe(2-x)Co(x)As2 was investigated by means of the 57Fe and 151Eu Moessbauer spectroscopy versus temperature (4.2 - 300 K) for x=0 (parent), x=0.34 - 0.39 (superconduc…
Large Scales - Long Times: Adding High Energy Resolution to SANS
G. Brandl, R. Georgii, W. Häußler +2
The Neutron Spin Echo (NSE) variant MIEZE (Modulation of IntEnsity by Zero Effort), where all beam manipulations are performed before the sample position, offers the possibility to…
Anisotropic in-plane optical conductivity in detwinned Ba(Fe1-xCox)2As2
A. Lucarelli, A. Dusza, A. Sanna +4
We study the anisotropic in-plane optical conductivity of detwinned Ba(Fe1-xCox)2As2 single crystals for x=0, 2.5% and 4.5% in a broad energy range (3 meV-5 eV) across their struct…
Coulomb Gap in Graphene Nanoribbons
S. Dröscher, H. Knowles, Y. Meir +2
We investigate the density and temperature-dependent conductance of graphene nanoribbons with varying aspect ratio. Transport is dominated by a chain of quantum dots forming sponta…
Irreversibility on the Level of Single-Electron Tunneling
B. Küng, C. Rössler, M. Beck +5
We present a low-temperature experimental test of the fluctuation theorem for electron transport through a double quantum dot. The rare entropy-consuming system trajectories are de…
Study of the anisotropic magnetic order of the Eu sublattice in single crystals of EuFe_2-xCo_xAs_2 (x = 0, 0.2) by means of magnetization and magnetic torque
Z. Guguchia, S. Bosma, S. Weyeneth +5
Here, we present a combination of magnetization and magnetic torque experiments to investigate the magnetic orders in undoped EuFe2As2 and Co doped EuFe1.8Co0.2As2 single crystals.…
Multi-band superconductivity in LaFeAsO_{0.9}F_{0.1} single crystals probed by high-field vortex torque magnetometry
G. Li, G. Grissonanche, A. Gurevich +5
To probe manifestations of multiband superconductivity in oxypnictides, we measured the angular dependence of the magnetic torque in the mixed state of LaOFF…