A two-impurity model for the underscreened Kondo problem

K. Le Hur; B. Coqblin

doi:10.1016/S0921-4526(96)00612-6

A two-impurity model for the underscreened Kondo problem

K. Le Hur
, B. Coqblin

Laboratoire de Physique des Solides

Research output: Contribution to journal › Article › peer-review

Abstract

The underscreened Kondo effect is studied within a model of two impurities with S = 1 interacting with the conduction band and via a classical interimpurity coupling KS₁ · S₂. A completely asymmetric situation is obtained with one s = 1/2 component strongly screened by the Kondo effect and the other one almost free to yield direct or indirect magnetism, which shows finally a possible coexistence between a strong local Kondo effect and the RKKY interaction between the two S = 1 spins, for some values of the K parameter.

Original language	English
Pages (from-to)	454-456
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	230-232
DOIs	https://doi.org/10.1016/S0921-4526(96)00612-6
Publication status	Published - 1 Jan 1997
Externally published	Yes

Keywords

Kondo compounds
Two-impurity model
Underscreened Kondo problem
Uranium compounds

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10.1016/S0921-4526(96)00612-6

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title = "A two-impurity model for the underscreened Kondo problem",

abstract = "The underscreened Kondo effect is studied within a model of two impurities with S = 1 interacting with the conduction band and via a classical interimpurity coupling KS1 · S2. A completely asymmetric situation is obtained with one s = 1/2 component strongly screened by the Kondo effect and the other one almost free to yield direct or indirect magnetism, which shows finally a possible coexistence between a strong local Kondo effect and the RKKY interaction between the two S = 1 spins, for some values of the K parameter.",

keywords = "Kondo compounds, Two-impurity model, Underscreened Kondo problem, Uranium compounds",

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AU - Le Hur, K.

AU - Coqblin, B.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The underscreened Kondo effect is studied within a model of two impurities with S = 1 interacting with the conduction band and via a classical interimpurity coupling KS1 · S2. A completely asymmetric situation is obtained with one s = 1/2 component strongly screened by the Kondo effect and the other one almost free to yield direct or indirect magnetism, which shows finally a possible coexistence between a strong local Kondo effect and the RKKY interaction between the two S = 1 spins, for some values of the K parameter.

AB - The underscreened Kondo effect is studied within a model of two impurities with S = 1 interacting with the conduction band and via a classical interimpurity coupling KS1 · S2. A completely asymmetric situation is obtained with one s = 1/2 component strongly screened by the Kondo effect and the other one almost free to yield direct or indirect magnetism, which shows finally a possible coexistence between a strong local Kondo effect and the RKKY interaction between the two S = 1 spins, for some values of the K parameter.

KW - Kondo compounds

KW - Two-impurity model

KW - Underscreened Kondo problem

KW - Uranium compounds

UR - https://www.scopus.com/pages/publications/0031069241

U2 - 10.1016/S0921-4526(96)00612-6

DO - 10.1016/S0921-4526(96)00612-6

M3 - Article

AN - SCOPUS:0031069241

SN - 0921-4526

VL - 230-232

SP - 454

EP - 456

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

ER -

A two-impurity model for the underscreened Kondo problem

Abstract

Keywords

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