Theory of the dHvA Effect in Heavy Fermion and Other Strongly Interacting Electron Systems

1987 ◽  
Vol 4 (4) ◽  
pp. 453-459 ◽  
Author(s):  
P. C. E Stamp
Keyword(s):  
Heavy Fermion ◽  
Electron Systems ◽  
Strongly Interacting

HEAVY FERMIONS — THEIR MAGNETISM AND SUPERCONDUCTIVITY

1993 ◽  
Vol 07 (01n03) ◽  
pp. 2-8 ◽  
Author(s):  
F. STEGLICH ◽  
C. GEIBEL ◽  
A. LOIDL ◽  
G. SPARN ◽  
C. D. BREDL ◽  
...  
Keyword(s):  
Long Range ◽  
Heavy Fermion ◽  
Local Moment ◽  
Antiferromagnetic Order ◽  
Electron Systems ◽  
Correlated Electron Systems ◽  
Cooperative Phenomena ◽  
Correlated Electron ◽  
Highly Correlated ◽  
Heavy Fermion Superconductivity

Heavy-fermion compounds are ideally suited to study cooperative phenomena in highly correlated electron systems. We discuss local-moment magnetism and heavy-fermion band magnetism in the exemplary systems CeCu 2 Ge 2 and Ni-rich Ce(Cu 1− x Ni x )2 Ge 2, respectively. In addition, the coexistence of long-range antiferromagnetic order and heavy-fermion superconductivity in UM 2 Al 3 (M: Ni, Pd) will be addressed.

scholarly journals Direct visualization of coexisting channels of interaction in CeSb

2019 ◽  
Vol 5 (3) ◽  
pp. eaat7158 ◽  
Author(s):  
Sooyoung Jang ◽  
Robert Kealhofer ◽  
Caolan John ◽  
Spencer Doyle ◽  
Ji-Sook Hong ◽  
...  
Keyword(s):  
Heavy Fermion ◽  
Real Space ◽  
Photoemission Spectroscopy ◽  
Itinerant Electron ◽  
Electron Systems ◽  
Direct Visualization ◽  
Correlated Electron Systems ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Correlated Electron ◽  
Modes Of Interaction

Our understanding of correlated electron systems is vexed by the complexity of their interactions. Heavy fermion compounds are archetypal examples of this physics, leading to exotic properties that weave magnetism, superconductivity and strange metal behavior together. The Kondo semimetal CeSb is an unusual example where different channels of interaction not only coexist, but have coincident physical signatures, leading to decades of debate about the microscopic picture describing the interactions between the f moments and the itinerant electron sea. Using angle-resolved photoemission spectroscopy, we resonantly enhance the response of the Ce f electrons across the magnetic transitions of CeSb and find there are two distinct modes of interaction that are simultaneously active, but on different kinds of carriers. This study reveals how correlated systems can reconcile the coexistence of different modes on interaction—by separating their action in momentum space, they allow their coexistence in real space.

Electric Quadrupole Orders in f-Electron Systems on the fcc Lattice

2021 ◽  
Vol 1 ◽  
Keyword(s):  
Phase Diagram ◽  
Heavy Fermion ◽  
Electric Quadrupole ◽  
Electron Systems ◽  
Rich Phase ◽  
Partially Ordered ◽  
Fcc Lattice ◽  
Ordered Phases ◽  
Heavy Fermion Materials

We theoretically showed that electric quadrupoles in some heavy fermion materials exhibit a very rich phase diagram including unique partially-ordered phases stabilized by an interaction specific to these systems.

scholarly journals Nonlocal dynamical correlations of strongly interacting electron systems

1998 ◽  
Vol 58 (12) ◽  
pp. R7475-R7479 ◽  
Author(s):  
M. H. Hettler ◽  
A. N. Tahvildar-Zadeh ◽  
M. Jarrell ◽  
T. Pruschke ◽  
H. R. Krishnamurthy
Keyword(s):  
Electron Systems ◽  
Strongly Interacting
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