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Entropy evolution in the magnetic phases of partially frustrated CePdAl
Stefan Lucas, Kai Grube, Chien-Lung Huang +8
In the heavy-fermion metal CePdAl long-range antiferromagnetic order coexists with geometric frustration of one third of the Ce moments. At low temperatures the Kondo effect tends…
Signature of f-electron conductance in -Ce single-atom contacts
Sebastian Kuntz, Oliver Berg, Christoph Sürgers +1
Cerium is a fascinating element exhibiting, with its different phases, long-range magnetic order and superconductivity in bulk form. The coupling of the 4f electron to sd conductio…
Switching of a large anomalous Hall effect between metamagnetic phases of a non-collinear antiferromagnet
Christoph Sürgers, Thomas Wolf, Peter Adelmann +3
The anomalous Hall effect (AHE), which in long-range ordered ferromagnets appears as a voltage transverse to the current and usually is proportional to the magnetization, often is…
CePdAl - a Kondo lattice with partial frustration
Veronika Fritsch, Stefan Lucas, Zita Huesges +10
Magnetic frustration, which is well-defined in insulating systems with localized magnetic moments, yields exotic ground states like spin ices, spin glasses, or spin liquids. In met…
Signature of frustrated moments in quantum critical CePdNiAl
Akito Sakai, Stefan Lucas, Philipp Gegenwart +3
CePdAl with Ce moments forming a distorted kagomé network is one of the scarce materials exhibiting Kondo physics and magnetic frustration simultaneously. As a result, antifer…
Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover
S. Kasahara, T. Yamashita, A. Shi +12
The physics of the crossover between weak-coupling Bardeen-Cooper-Schrieffer (BCS) and strong-coupling Bose-Einstein-condensate (BEC) limits gives a unified framework of quantum bo…