158 citations · 671 across the 17 of their papers we have counts for
13 papers · 1 filter
Origin of the non-Fermi-liquid behavior in CeRh2As2
P. Khanenko, D. Hafner, K. Semeniuk +11
Unconventional superconductivity in heavy-fermion systems appears often near magnetic quantum critical points (QCPs). This seems to be the case also for CeRh2As2 (Tc 0.31…
Electronuclear Quantum Criticality
J. Banda, D. Hafner, J. F. Landaeta +6
We present here a rare example of electronuclear quantum criticality in a metal. The compound YbCu4.6Au0.4 is located at an unconventional quantum critical point (QCP). In this mat…
Neutron Depolarization due to Ferromagnetism and Spin Freezing in CePdRh
M. Seifert, P. Schmakat, M. Schulz +5
We report neutron depolarization measurements of the suppression of long-range ferromagnetism and the emergence of magnetic irreversibilities and spin freezing in CePdRh$_x…
Possible quadrupole density wave in the superconducting Kondo lattice CeRh2As2
D. Hafner, P. Khanenko, E. -O. Eljaouhari +12
CeRh2As2 has recently been reported to be a rare case of multi-phase unconventional superconductor [S. Khim et al., arXiv:2101.09522] close to a quantum critical point (QCP). Here,…
Valence effect on the thermopower of Eu systems
Ulrike Stockert, Silvia Seiro, Nubia Caroca-Canales +2
We investigated the thermoelectric transport properties of EuNi2P2 and EuIr2Si2 in order to evaluate the relevance of Kondo interaction and valence fluctuations in these materials.…
GdRhSi: An exemplary tetragonal system for antiferromagnetic order with weak in-plane anisotropy
K. Kliemt, M. Hofmann-Kliemt, K. Kummer +3
The anisotropy of magnetic properties commonly is introduced in textbooks using the case of an antiferromagnetic system with Ising type anisotropy. This model presents huge anisotr…
Strong ferromagnetism at the surface of an antiferromagnet caused by buried magnetic moments
Alla Chikina, Marc Höppner, Silvia Seiro +13
Carrying a large, pure spin magnetic moment of 7 bohr/atom in the half-filled 4f shell, divalent europium is an outstanding element for assembling novel magnetic devices in whic…
Interplay of Dirac fermions and heavy quasiparticles in solids
M. Höppner, S. Seiro, A. Chikina +14
Many-body interactions in crystalline solids can be conveniently described in terms of quasiparticles with strongly renormalized masses as compared to those of non-interacting part…
Ferromagnetic order in Yb(RhCo)Si
S. Lausberg, A. Hannaske, A. Steppke +7
We present the discovery of ferromagnetism in single crystalline Yb(RhCo)Si below K with a spontaneous magnetic moment of …
Determining the in-plane orientation of the ground-state orbital of CeCu2Si2
T. Willers, F. Strigari, N. Hiraoka +9
We have successfully determined the hitherto unknown sign of the B44 Stevens crystal-field parameter of the tetragonal heavy-fermion compound CeCu2Si2 using vector q dependent non-…
Huge First-Order Metamagnetic Transition in the Paramagnetic Heavy-Fermion System CeTiGe
Micha Deppe, Stefan Lausberg, Franziska Weickert +5
We report on the observation of large, step-like anomalies in the magnetization (\,/Ce), in the magnetostriction (), and in the…
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition
T. Westerkamp, M. Deppe, R. Kuechler +5
We report on a comprehensive study of CePdRh poly- and single crystals close to the ferromagnetic instability by means of low-temperature ac su…
Strong frustration due to competing ferromagnetic and antiferromagnetic interactions: magnetic properties of M(VO)2(PO4)2 (M = Ca and Sr)
R. Nath, A. A. Tsirlin, E. E. Kaul +4
We present a detailed investigation of the magnetic properties of complex vanadium phosphates M(VO)2(PO4)2 (M = Ca, Sr) by means of magnetization, specific heat, 31P NMR measuremen…