VALENCE INSTABILITIES.Theoretical study of the Kondo lattice

R. Jullien; P. Pfeuty; J. N. Fields; S. Doniach

doi:10.1051/jphyscol:19795105

VALENCE INSTABILITIES.Theoretical study of the Kondo lattice

Le Journal de Physique Colloques ◽

10.1051/jphyscol:19795105 ◽

1979 ◽

Vol 40 (C5) ◽

pp. C5-293-C5-300 ◽

Cited By ~ 9

Author(s):

R. Jullien ◽

P. Pfeuty ◽

J. N. Fields ◽

S. Doniach

Keyword(s):

Kondo Lattice

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THE KONDO LATTICE : A THEORETICAL MODEL FOR Tm Se ?

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1980555 ◽

1980 ◽

Vol 41 (C5) ◽

pp. C5-331-C5-333 ◽

Cited By ~ 1

Author(s):

R. Jullien ◽

P. Pfeuty ◽

A. K. Bhattacharjee ◽

B. Coqblin

Keyword(s):

Theoretical Model ◽

Kondo Lattice

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Influence of hydrostatic pressure on hidden order, the Kondo lattice, and magnetism in URu2Si2−xPx

Physical Review B ◽

10.1103/physrevb.102.245152 ◽

2020 ◽

Vol 102 (24) ◽

Author(s):

Greta L. Chappell ◽

A. Gallagher ◽

D. E. Graf ◽

Peter Riseborough ◽

Ryan E. Baumbach

Keyword(s):

Hydrostatic Pressure ◽

Kondo Lattice ◽

Hidden Order

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Energy-scale cascade and correspondence between Mott and Kondo lattice physics

Physical Review Research ◽

10.1103/physrevresearch.2.043407 ◽

2020 ◽

Vol 2 (4) ◽

Author(s):

Danqing Hu ◽

Ning-Hua Tong ◽

Yi-feng Yang

Keyword(s):

Energy Scale ◽

Kondo Lattice

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Electron liquid state in the symmetric Anderson lattice

Scientific Reports ◽

10.1038/s41598-021-85317-z ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Igor N. Karnaukhov

Keyword(s):

Low Temperatures ◽

Arbitrary Dimension ◽

Mean Field ◽

Coulomb Repulsion ◽

Anomalous Behavior ◽

Effective Field ◽

Kondo Lattice ◽

Field Approach ◽

Cubic Lattices ◽

Half Filling

AbstractUsing mean field approach, we provide analytical and numerical solution of the symmetric Anderson lattice for arbitrary dimension at half filling. The symmetric Anderson lattice is equivalent to the Kondo lattice, which makes it possible to study the behavior of an electron liquid in the Kondo lattice. We have shown that, due to hybridization (through an effective field due to localized electrons) of electrons with different spins and momenta $$\mathbf{k} $$ k and $$\mathbf{k} +\overrightarrow{\pi }$$ k + π → , the gap in the electron spectrum opens at half filling. Such hybridization breaks the conservation of the total magnetic momentum of electrons, the spontaneous symmetry is broken. The state of electron liquid is characterized by a large Fermi surface. A gap in the spectrum is calculated depending on the magnitude of the on-site Coulomb repulsion and value of s–d hybridization for the chain, as well as for square and cubic lattices. Anomalous behavior of the heat capacity at low temperatures in the gapped state, which is realized in the symmetric Anderson lattice, was also found.

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Spin-texture-driven electrical transport in multi-Q antiferromagnets

Communications Physics ◽

10.1038/s42005-021-00558-8 ◽

2021 ◽

Vol 4 (1) ◽

Author(s):

Soonbeom Seo ◽

Satoru Hayami ◽

Ying Su ◽

Sean M. Thomas ◽

Filip Ronning ◽

...

Keyword(s):

Electrical Transport ◽

Kondo Lattice ◽

Magnetic Interactions ◽

Temperature Phase ◽

Fermi Surfaces ◽

Magnetic Texture ◽

Crystalline Anisotropy ◽

Field Temperature ◽

Kondo Lattice Model ◽

Spin Texture

AbstractUnusual magnetic textures can be stabilized in f-electron materials due to the interplay between competing magnetic interactions, complex Fermi surfaces, and crystalline anisotropy. Here we investigate CeAuSb2, an f-electron incommensurate antiferromagnet hosting both single-Q and double-Q spin textures as a function of magnetic fields (H) applied along the c axis. Experimentally, we map out the field-temperature phase diagram via electrical resistivity and thermal expansion measurements. Supported by calculations of a Kondo lattice model, we attribute the puzzling magnetoresistance enhancement in the double-Q phase to the localization of the electronic wave functions caused by the incommensurate magnetic texture.

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