Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR528 papers
- University of ViennaAT480 papers
- Vienna Center for Quantum Science and TechnologyAT328 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR275 papers
- European Organization for Nuclear ResearchCH263 papers
- Charles UniversityCZ245 papers
- ETH ZurichCH223 papers
- Institute of High Energy PhysicsCN223 papers
- Université Paris-SaclayFR219 papers
- CEA Paris-SaclayFR215 papers
- University of WarsawPL215 papers
- Massachusetts Institute of TechnologyUS209 papers
16 papers · 2 filters
Analytical continuation of imaginary axis data for optical conductivity
O. Gunnarsson, M. W. Haverkort, G. Sangiovanni
We compare different methods for performing analytical continuation of spectral data from the imaginary time or frequency axis to the real frequency axis for the optical conductivi…
Magnetocaloric effect and magnetic cooling near a field-induced quantum-critical point
B. Wolf, Y. Tsui, D. Jaiswal-Nagar +8
The presence of a quantum critical point (QCP) can significantly affect the thermodynamic properties of a material at finite temperatures T. This is reflected, e.g., in the entropy…
Pseudogap of metallic layered nickelate R2-xSrxNiO4 (R=Nd, Eu) crystals measured using angle-resolved photoemission spectroscopy
M. Uchida, K. Ishizaka, P. Hansmann +11
We have investigated charge dynamics and electronic structures for single crystals of metallic layered nickelates, R2-xSrxNiO4 (R=Nd, Eu), isostructural to La2-xSrxCuO4. Angle-reso…
Competing magnetic interactions in CeNi9-xCoxGe4
L Peyker, C Gold, W Scherer +2
CeNi9Ge4 exhibits outstanding heavy fermion features with remarkable non-Fermi- liquid behavior which is mainly driven by single-ion effects. The substitution of Ni by Cu causes a…
A Microscopic View on the Mott transition in Chromium-doped V2O3
S. Lupi, L. Baldassarre, B. Mansart +18
V2O3 is the prototype system for the Mott transition, one of the most fundamental phenomena of electronic correlation. Temperature, doping or pressure induce a metal to insulator t…
Fermi-surface collapse and dynamical scaling near a quantum critical point
Sven Friedemann, Niels Oeschler, Steffen Wirth +6
Quantum criticality arises when a macroscopic phase of matter undergoes a continuous transformation at zero temperature. While the collective fluctuations at quantum-critical point…
Discontinuous Hall coefficient at the quantum critical point in YbRh2Si2
Sven Friedemann, Niels Oeschler, Steffen Wirth +6
YbRh2Si2 is a model system for quantum criticality. Particularly, Hall effect measurements helped identify the unconventional nature of its quantum critical point. Here, we present…
Fourier transformation and response functions
O. Gunnarsson, G. Sangiovanni, A. Valli +1
We improve on Fourier transforms (FT) between imaginary time and imaginary frequency used in certain quantum cluster approaches using the Hirsch-Fye method. The asymptoti…
High-Frequency Electromagnon in GdMnO3
A. Shuvaev, F. Mayr, A. Loidl +2
We present the results of transmittance experiments on GdMnO3 multiferroic manganite in the far infrared frequency range. The spectra allow to obtain the positions and the intensit…
Magnetic excitations in multiferroic LuMnO3 studied by inelastic neutron scattering
H. J. Lewtas, A. T. Boothroyd, M. Rotter +6
We present data on the magnetic and magneto-elastic coupling in the hexagonal multiferroic manganite LuMnO3 from inelastic neutron scattering, magnetization and thermal expansion m…
Low-energy kink in the nodal dispersion of copper-oxide superconductors: Insights from Dynamical Mean Field Theory
Johannes Bauer, Giorgio Sangiovanni
Motivated by the observation in copper-oxide high-temperature superconductors, we investigate the appearance of kinks in the electronic dispersion due to coupling to phonons for a…
New high magnetic field phase of the frustrated chain compound LiCuVO
L. E. Svistov, T. Fujita, H. Yamaguchi +6
Magnetization of the frustrated chain compound LiCuVO, focusing on high magnetic field phases, is reported. Besides a spin-flop transition and the transition from a pla…
Doped high-Tc cuprate superconductors elucidated in the light of zeros and poles of electronic Green's function
Shiro Sakai, Yukitoshi Motome, Masatoshi Imada
We study electronic structure of hole- and electron-doped Mott insulators in the two-dimensional Hubbard model to reach a unified picture for the normal state of cuprate high-Tc su…
Evidence for a Non-Fermi-Liquid Phase in Ge-Substituted YbRh2Si2
J. Custers, P. Gegenwart, C. Geibel +3
The canonical view of heavy fermion quantum criticality assumes a single quantum critical point separating the paramagnet from the antiferromagnet. However, recent experiments on Y…
Dynamical vertex approximation for nanoscopic systems
Angelo Valli, Giorgio Sangiovanni, Olle Gunnarsson +2
With an increasing complexity of nanoscopic systems and the modeling thereof, new theoretical tools are needed for a reliable calculation of complex systems with strong electronic…
Inequivalent routes across the Mott transition in V2O3 explored by X-ray absorption
F. Rodolakis, P. Hansmann, J. -P. Rueff +14
The changes in the electronic structure of V2O3 across the metal-insulator transition induced by temperature, doping and pressure are identified using high resolution x-ray absorpt…