Kondo insulators: are simple theories good enough?

S. Doniach; Castor Fu; Stuart Alan Trugman

doi:10.1016/0921-4526(94)91866-X

Kondo insulators: are simple theories good enough?

S. Doniach
, Castor Fu
, Stuart Alan Trugman

Los Alamos National Laboratory

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

15 Scopus citations

Abstract

We briefly summarize the basic concepts behind the terms "Kondo insulator". We point out the importance of including band structure effects in calculating excitation spectra. A discussion of a mid-gap impurity band induced by depants leads to the suggestion of a low-temperature magnetic phase caused by departure from stoichiometry in samples of CeNiSn. This could provide an explanation for the 1/T₁ ∝ T³ behavior in NMR for this material.

Original language	English
Pages (from-to)	450-453
Number of pages	4
Journal	Physica B: Physics of Condensed Matter
Volume	199-200
Issue number	C
DOIs	https://doi.org/10.1016/0921-4526(94)91866-X
State	Published - Apr 2 1994

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title = "Kondo insulators: are simple theories good enough?",

abstract = "We briefly summarize the basic concepts behind the terms {"}Kondo insulator{"}. We point out the importance of including band structure effects in calculating excitation spectra. A discussion of a mid-gap impurity band induced by depants leads to the suggestion of a low-temperature magnetic phase caused by departure from stoichiometry in samples of CeNiSn. This could provide an explanation for the 1/T1 ∝ T3 behavior in NMR for this material.",

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AU - Trugman, Stuart Alan

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N2 - We briefly summarize the basic concepts behind the terms "Kondo insulator". We point out the importance of including band structure effects in calculating excitation spectra. A discussion of a mid-gap impurity band induced by depants leads to the suggestion of a low-temperature magnetic phase caused by departure from stoichiometry in samples of CeNiSn. This could provide an explanation for the 1/T1 ∝ T3 behavior in NMR for this material.

AB - We briefly summarize the basic concepts behind the terms "Kondo insulator". We point out the importance of including band structure effects in calculating excitation spectra. A discussion of a mid-gap impurity band induced by depants leads to the suggestion of a low-temperature magnetic phase caused by departure from stoichiometry in samples of CeNiSn. This could provide an explanation for the 1/T1 ∝ T3 behavior in NMR for this material.

UR - https://www.scopus.com/pages/publications/0028760472

U2 - 10.1016/0921-4526(94)91866-X

DO - 10.1016/0921-4526(94)91866-X

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SP - 450

EP - 453

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - C

ER -

Kondo insulators: are simple theories good enough?

Abstract

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