High field heat capacities of some singlet ground state systems at very low temperatures

T. C. Kobayashi; A. Koda; K. Amaya

doi:10.1016/0921-4526(95)00500-5

High field heat capacities of some singlet ground state systems at very low temperatures

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Abstract

Several aspects of high field heat capacity observed in different types of singlet ground state system are discussed. The ground state energy gap and its magnetic field dependence are also studied in the Haldane gap compounds NENP, NINO and TMNIN. The origin of the observed minimum gap in applied magnetic field is discussed. In the spin-Peierls compound CuGeO₃, the energy gap of the Cu²⁺ spin system in the dimerized phase and the gapless state in the high-field magnetic phase are confirmed.

Original language	English
Pages (from-to)	304-306
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	216
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4526(95)00500-5
Publication status	Published - Jan 1 1996
Externally published	Yes

ASJC Scopus subject areas

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

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author = "Kobayashi, {T. C.} and A. Koda and K. Amaya",

year = "1996",

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T1 - High field heat capacities of some singlet ground state systems at very low temperatures

AU - Kobayashi, T. C.

AU - Koda, A.

AU - Amaya, K.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Several aspects of high field heat capacity observed in different types of singlet ground state system are discussed. The ground state energy gap and its magnetic field dependence are also studied in the Haldane gap compounds NENP, NINO and TMNIN. The origin of the observed minimum gap in applied magnetic field is discussed. In the spin-Peierls compound CuGeO3, the energy gap of the Cu2+ spin system in the dimerized phase and the gapless state in the high-field magnetic phase are confirmed.

AB - Several aspects of high field heat capacity observed in different types of singlet ground state system are discussed. The ground state energy gap and its magnetic field dependence are also studied in the Haldane gap compounds NENP, NINO and TMNIN. The origin of the observed minimum gap in applied magnetic field is discussed. In the spin-Peierls compound CuGeO3, the energy gap of the Cu2+ spin system in the dimerized phase and the gapless state in the high-field magnetic phase are confirmed.

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JF - Physica B: Condensed Matter

SN - 0921-4526

IS - 3-4

ER -

High field heat capacities of some singlet ground state systems at very low temperatures

Abstract

ASJC Scopus subject areas

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