Kondo ground state of CeCoGe2 with j=5/2

E. D. Mun; B. K. Lee; Y. S. Kwon; M. H. Jung

doi:10.1103/PhysRevB.69.085113

Kondo ground state of CeCoGe₂ with j=5/2

E. D. Mun, B. K. Lee, Y. S. Kwon, M. H. Jung

Department of Physics and Chemistry

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20 Scopus citations

Abstract

We report results for the magnetic susceptibility, specific heat, and electrical resistivity of CeCoGe₂, which shows a heavy-fermion-like behavior with the Kondo temperature scale T_K250K. The Ce ion in this compound turns out to be in the normal trivalent state, compared with valence fluctuation in the previous study for a nonstoichiometric sample of CeCo_0.89Ge₂. The presented results of CeCoGe2 are well interpreted by the Coqblin-Schrieffer model with j=5/2 ground state for heavy-fermion Kondo systems.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	69
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.69.085113
State	Published - 2004

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10.1103/PhysRevB.69.085113

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title = "Kondo ground state of CeCoGe2 with j=5/2",

abstract = "We report results for the magnetic susceptibility, specific heat, and electrical resistivity of CeCoGe2, which shows a heavy-fermion-like behavior with the Kondo temperature scale TK250K. The Ce ion in this compound turns out to be in the normal trivalent state, compared with valence fluctuation in the previous study for a nonstoichiometric sample of CeCo0.89Ge2. The presented results of CeCoGe2 are well interpreted by the Coqblin-Schrieffer model with j=5/2 ground state for heavy-fermion Kondo systems.",

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language = "English",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Kondo ground state of CeCoGe2 with j=5/2

AU - Mun, E. D.

AU - Lee, B. K.

AU - Kwon, Y. S.

AU - Jung, M. H.

PY - 2004

Y1 - 2004

N2 - We report results for the magnetic susceptibility, specific heat, and electrical resistivity of CeCoGe2, which shows a heavy-fermion-like behavior with the Kondo temperature scale TK250K. The Ce ion in this compound turns out to be in the normal trivalent state, compared with valence fluctuation in the previous study for a nonstoichiometric sample of CeCo0.89Ge2. The presented results of CeCoGe2 are well interpreted by the Coqblin-Schrieffer model with j=5/2 ground state for heavy-fermion Kondo systems.

AB - We report results for the magnetic susceptibility, specific heat, and electrical resistivity of CeCoGe2, which shows a heavy-fermion-like behavior with the Kondo temperature scale TK250K. The Ce ion in this compound turns out to be in the normal trivalent state, compared with valence fluctuation in the previous study for a nonstoichiometric sample of CeCo0.89Ge2. The presented results of CeCoGe2 are well interpreted by the Coqblin-Schrieffer model with j=5/2 ground state for heavy-fermion Kondo systems.

UR - https://www.scopus.com/pages/publications/10844224770

U2 - 10.1103/PhysRevB.69.085113

DO - 10.1103/PhysRevB.69.085113

M3 - Article

AN - SCOPUS:10844224770

SN - 1098-0121

VL - 69

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 8

ER -

Kondo ground state of CeCoGe₂ with j=5/2

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