242 citations · 460 across the 19 of their papers we have counts for
20 papers
Unconventional superconductivity in locally non-centrosymmetric CeNiAs
Félix Morineau, Jan Knapp, Javier Landaeta +12
Recent years have seen intense research on heavy fermion superconductivity, inspired by the discovery of multiple superconducting phases in UTe and CeRhAs$_\t…
Evolution of electron spin resonance through a metallic quantum critical phase diagram
Marc Scheffler, Jörg Sichelschmidt, Conrad Clauss +6
In the heavy-fermion metal YbRh2Si2, quantum criticality at a suppressed antiferromagnetic order is governed by the interplay of local magnetic moments and itinerant conduction ele…
Incommensurate modulation with A-type Antiferromagnetic Order in CeRhAs revealed by NQR studies
Shiki Ogata, Shunsaku Kitagawa, Kenji Ishida +4
We performed As nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) measurements on a higher-quality single-crystalline CeRhAs, a heavy-fermion s…
Conventional -wave Superconductivity in LaRhAs; the Analog without the 4 Electrons of CeRhAs
Shiki Ogata, Shunsaku Kitagawa, Kenji Ishida +4
Superconductor LaRhAs has the same crystal structures as CeRhAs, which exhibits superconducting (SC) multiphase in the -axis magnetic field. Although the SC tran…
Multilayer Crystal Field states from locally broken centrosymmetry
Owen Moulding, Makoto Shimizu, Amit Pawbake +9
Local charge, spin, or orbital degrees of freedom with intersite interactions are oftentimes sufficient to construct most quantum orders. This is conventionally true for f-electron…
Odd-parity superconductivity underpinned by antiferromagnetism in heavy fermion metal YbRhSi
Lev V. Levitin, Jan Knapp, Petra Knappová +13
Topological superconductors are essential elements of the periodic table of topological quantum matter. However, the relevant odd-parity spin-triplet superconductors are rare. We r…
Magnetic Phase Diagram of YbRh\textsubscript{2}Si\textsubscript{2}: the Influence of Hyperfine Interactions
Jan Knapp, Lev V. Levitin, Jan Nyeki +6
We report the determination of the magnetic phase diagram of the heavy fermion metal YbRh\textsubscript{2}Si\textsubscript{2} in magnetic fields up to 70\,mT applied perpendicular…
Appearance of -axis magnetic moment in odd-parity antiferromagnetic state in CeRhAs revealed by As-NMR
Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo +5
CeRhAs shows the superconducting (SC) multiphase under the -axis magnetic field, which is considered to originate from local inversion symmetry breaking at the Ce site.…
Coexistence of local magnetism and superconductivity in the heavy-fermion CeRhAs revealed by SR studies
Seunghyun Khim, Oliver Stockert, Manuel Brando +8
The superconducting (SC) state ( = 0.3 K) of the heavy-fermion compound CeRhAs, which undergoes an unusual field-induced transition to another high-field SC s…
Metallic local-moment magnetocalorics as a route to cryogenic refrigeration
Thomas Gruner, Jiasheng Chen, Dongjin Jang +4
Commercial adiabatic demagnetisation refrigerators still employ the same hydrated salts that were first introduced over 85 years ago. The inherent limitations of these insulating m…
Investigation of the hyperfine coupling constant of locally noncentrosymmetric heavy-fermion superconductor CeRhAs
Shiki Ogata, Shunsaku Kitagawa, Katsuki Kinjo +6
We performed As-NMR measurements in to investigate the normal-state magnetic properties of CeRhAs, a recently-discovered heavy-fermion superconductor…
Exposing the odd-parity superconductivity in CeRhAs with hydrostatic pressure
Konstantin Semeniuk, Meike Pfeiffer, Javier F. Landaeta +5
Odd-parity superconductivity is a fundamentally interesting but rare state of matter with a potential for applications in topological quantum computing. Crystals with staggered loc…
Pressure-tuned quantum criticality in the locally non-centrosymmetric superconductor CeRhAs
Meike Pfeiffer, Konstantin Semeniuk, Javier F. Landaeta +6
The unconventional superconductor CeRhAs (critical temperature ) displays an exceptionally rare magnetic-field-induced transition betw…
CeIrGa : a new locally non-centrosymmetric heavy fermion system
Arushi, Raul Cardoso-Gil, Christoph Geibel
Recently, a new type of unconventional superconductivity with a field-induced transition between two different superconducting (SC) states was discovered in the heavy fermion syste…
Magnetically driven superconductivity in CeCu2Si2
O. Stockert, J. Arndt, E. Faulhaber +8
The origin of unconventional superconductivity, including high-temperature and heavy-fermion superconductivity, is still a matter of controversy. Spin excitations instead of phonon…
Temperature- and Magnetic-Field-Dependent Optical Properties of Heavy Quasiparticles in YbIr2Si2
T. Iizuka, S. Kimura, A. Herzog +4
We report the temperature- and magnetic-field-dependent optical conductivity spectra of the heavy electron metal YbIrSi. Upon cooling below the Kondo temperature ($T_{\rm K…
Quantum Griffiths phase in CePd(1-x)Rh(x) with x ~ 0.8
M. Brando, T. Westerkamp, M. Deppe +3
The magnetic field dependence of the magnetisation () and the temperature dependence of the ac susceptibility () of CePd(1-x)Rh(x) single crystals with $0.80 \leq x…
ESR of YbRh2Si2 and 174YbRh2Si2 : local and itinerant properties
J. Wykhoff, J. Sichelschmidt, G. Lapertot +7
Below the Kondo temperature the heavy Fermion compound YbRhSi shows a well defined Electron Spin Resonance (ESR) with local Yb properties. We report a detailed a…
Experimental evidence for a spin-Peierls-transition in
M. Weiden, R. Hauptmann, C. Geibel +4
We present the first measurements of magnetisation and Raman light scattering on single crystals. Below 34 K, we observe a pronounced isotropic decrease of the suscep…
Break junctions of the heavy-fermion superconductors
K. Gloos, F. B. Anders, B. Buschinger +1
Mechanical-controllable break junctions of the heavy-fermion superconductors can show Josephson-like superconducting anomalies. But a systematic study on the contact size demonstra…