Stabilization of spin liquid in Kondo lattice: High temperature regime

K. A. Kikoin; M. N. Kiselev; A. S. Mishchenko

doi:10.1016/S0921-4526(96)00623-0

Stabilization of spin liquid in Kondo lattice: High temperature regime

K. A. Kikoin, M. N. Kiselev, A. S. Mishchenko

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

3 Scopus citations

Abstract

The mechanism explaining the key role of AFM correlations in formation of the heavy fermion state is offered. It is shown that in the case of (T* - T_N)/T_N ≪ 1, the critical spin fluctuations transform the mean-field second-order transition to RVB state into the crossover from high-temperature paramagnetic behavior of localized spins to strongly correlated spin liquid with quasi itinerant character of susceptibility. Thus the spin-liquid state by its origin is close to magnetic instability, so either short-range or long-range AFM order should arise at low T.

Original language	English
Pages (from-to)	490-492
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	230-232
DOIs	https://doi.org/10.1016/S0921-4526(96)00623-0
State	Published - 1 Jan 1997
Externally published	Yes

Keywords

Magnetic instability
Spin liquid

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(96)00623-0

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abstract = "The mechanism explaining the key role of AFM correlations in formation of the heavy fermion state is offered. It is shown that in the case of (T* - TN)/TN ≪ 1, the critical spin fluctuations transform the mean-field second-order transition to RVB state into the crossover from high-temperature paramagnetic behavior of localized spins to strongly correlated spin liquid with quasi itinerant character of susceptibility. Thus the spin-liquid state by its origin is close to magnetic instability, so either short-range or long-range AFM order should arise at low T.",

keywords = "Magnetic instability, Spin liquid",

author = "Kikoin, {K. A.} and Kiselev, {M. N.} and Mishchenko, {A. S.}",

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T1 - Stabilization of spin liquid in Kondo lattice

T2 - High temperature regime

AU - Kikoin, K. A.

AU - Kiselev, M. N.

AU - Mishchenko, A. S.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The mechanism explaining the key role of AFM correlations in formation of the heavy fermion state is offered. It is shown that in the case of (T* - TN)/TN ≪ 1, the critical spin fluctuations transform the mean-field second-order transition to RVB state into the crossover from high-temperature paramagnetic behavior of localized spins to strongly correlated spin liquid with quasi itinerant character of susceptibility. Thus the spin-liquid state by its origin is close to magnetic instability, so either short-range or long-range AFM order should arise at low T.

AB - The mechanism explaining the key role of AFM correlations in formation of the heavy fermion state is offered. It is shown that in the case of (T* - TN)/TN ≪ 1, the critical spin fluctuations transform the mean-field second-order transition to RVB state into the crossover from high-temperature paramagnetic behavior of localized spins to strongly correlated spin liquid with quasi itinerant character of susceptibility. Thus the spin-liquid state by its origin is close to magnetic instability, so either short-range or long-range AFM order should arise at low T.

KW - Magnetic instability

KW - Spin liquid

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U2 - 10.1016/S0921-4526(96)00623-0

DO - 10.1016/S0921-4526(96)00623-0

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SN - 0921-4526

VL - 230-232

SP - 490

EP - 492

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Stabilization of spin liquid in Kondo lattice: High temperature regime

Abstract

Keywords

ASJC Scopus subject areas

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