Electron Transport in Mixed Valence and Heavy Fermion Metals

1987 ◽  
pp. 581-584
Author(s):  
Piers Coleman
Keyword(s):  
Electron Transport ◽  
Heavy Fermion ◽  
Mixed Valence

Systematics of mixed valence and heavy fermion behaviors in YbCu5 and related systems

2000 ◽  
Vol 281-282 ◽  
pp. 141-143 ◽  
Author(s):  
Kazuyoshi Yoshimura ◽  
Naohito Tsujii ◽  
Kouichi Sorada ◽  
Takashi Kawabata ◽  
Hiroyuki Mitamura ◽  
...  
Keyword(s):  
Heavy Fermion ◽  
Mixed Valence

Electron transport properties in Ce-based amorphous heavy fermion systems

1993 ◽  
Vol 186-188 ◽  
pp. 242-244
Author(s):  
K. Sumiyama ◽  
Y. Homma ◽  
T. Hihara ◽  
S. Sakatsume ◽  
K. Suzuki
Keyword(s):  
Electron Transport ◽  
Transport Properties ◽  
Heavy Fermion ◽  
Fermion Systems ◽  
Heavy Fermion Systems ◽  
Electron Transport Properties

van der Waals Mixed Valence Tin Oxides for Perovskite Solar Cells as UV-Stable Electron Transport Materials

Nano Letters ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 8178-8184
Author(s):  
Sheng Li ◽  
Fei Qin ◽  
Qi Peng ◽  
Shuang Liu ◽  
Zhihui Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Van Der Waals ◽  
Mixed Valence ◽  
Perovskite Solar Cells ◽  
Tin Oxides

Mixed-valence manganese(II)-manganese(III) complexes: models for the manganese site in the photosynthetic electron transport chain

1985 ◽  
Vol 107 (9) ◽  
pp. 2801-2802 ◽  
Author(s):  
Bouchra Mabad ◽  
Jean Pierre Tuchagues ◽  
Yeong Tsyr Hwang ◽  
David N. Hendrickson
Keyword(s):  
Electron Transport ◽  
Electron Transport Chain ◽  
Mixed Valence ◽  
Photosynthetic Electron Transport ◽  
Photosynthetic Electron Transport Chain ◽  
Transport Chain

Evolution from heavy-fermion to mixed-valence behavior in the series CePt1−xIrxSi2

2001 ◽  
Vol 120 (1) ◽  
pp. 29-33 ◽  
Author(s):  
J.J. Lu ◽  
C. Tien ◽  
L.Y. Jang
Keyword(s):  
Heavy Fermion ◽  
Mixed Valence

scholarly journals Avoided valence transition in a plutonium superconductor

2015 ◽  
Vol 112 (11) ◽  
pp. 3285-3289 ◽  
Author(s):  
B. J. Ramshaw ◽  
Arkady Shekhter ◽  
Ross D. McDonald ◽  
Jon B. Betts ◽  
J. N. Mitchell ◽  
...  
Keyword(s):  
Heavy Fermion ◽  
Cuprate Superconductors ◽  
Critical Role ◽  
Mixed Valence ◽  
Magnetic Fluctuations ◽  
Elastic Symmetry ◽  
Valence Transition ◽  
Valence Fluctuations ◽  
Wide Range ◽  
Valence Electrons

The d and f electrons in correlated metals are often neither fully localized around their host nuclei nor fully itinerant. This localized/itinerant duality underlies the correlated electronic states of the high-Tc cuprate superconductors and the heavy-fermion intermetallics and is nowhere more apparent than in the 5f valence electrons of plutonium. Here, we report the full set of symmetry-resolved elastic moduli of PuCoGa5—the highest Tc superconductor of the heavy fermions (Tc = 18.5 K)—and find that the bulk modulus softens anomalously over a wide range in temperature above Tc. The elastic symmetry channel in which this softening occurs is characteristic of a valence instability—therefore, we identify the elastic softening with fluctuations of the plutonium 5f mixed-valence state. These valence fluctuations disappear when the superconducting gap opens at Tc, suggesting that electrons near the Fermi surface play an essential role in the mixed-valence physics of this system and that PuCoGa5 avoids a valence transition by entering the superconducting state. The lack of magnetism in PuCoGa5 has made it difficult to reconcile with most other heavy-fermion superconductors, where superconductivity is generally believed to be mediated by magnetic fluctuations. Our observations suggest that valence fluctuations play a critical role in the unusually high Tc of PuCoGa5.

Electron transport in HgSe:Fe, Ga crystals containing iron impurities with mixed valence

1997 ◽  
Vol 12 (7) ◽  
pp. 840-848 ◽  
Author(s):  
I G Kuleyev ◽  
N K Lerinman ◽  
L D Sabirzyanova ◽  
G L Shtrapenin ◽  
S You Paranchich
Keyword(s):  
Electron Transport ◽  
Mixed Valence

Model of interband pairing in mixed valence and heavy fermion systems

1987 ◽  
Vol 67 (1) ◽  
pp. 63-68 ◽  
Author(s):  
O. V. Dolgov ◽  
E. P. Fetisov ◽  
D. I. Khomski� ◽  
K. Svozil
Keyword(s):  
Heavy Fermion ◽  
Mixed Valence ◽  
Fermion Systems ◽  
Heavy Fermion Systems ◽  
Interband Pairing

Mixed-valence and Kondo lattice behaviour in the uranium heavy-fermion systems

1989 ◽  
Vol 1 (51) ◽  
pp. 10487-10505 ◽  
Author(s):  
S M M Evans ◽  
G A Gehring
Keyword(s):  
Heavy Fermion ◽  
Mixed Valence ◽  
Kondo Lattice ◽  
Fermion Systems ◽  
Heavy Fermion Systems
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