SPECIFIC-HEAT OF THE SPIN-PEIERLS COMPOUND CUGEO3

被引：36

作者：

LIU, X ^{[1
]}

WOSNITZA, J ^{[1
]}

VONLOHNEYSEN, H ^{[1
]}

KREMER, RK ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH, D-70569 STUTTGART, GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1995年 / 98卷 / 02期

关键词：

D O I：

10.1007/BF01324521

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The specific heat of the quasi-onedimensional magnetic compound CuGeO(3) shows a sharp anomaly at the spin-Peierls transition temperature T(sp). The experimental decrease of the magnetic specific heat below T(s)p indicates the presence of a spin gap as observed previously with inelastic neutron scattering. A magnetic field of 6T suppresses T(s)p only slightly but reduces the spin gap by a factor of two.

引用

页码：163 / 165

页数：3

共 11 条

[1] LINEAR MAGNETIC CHAINS WITH ANISOTROPIC COUPLING [J].

BONNER, JC ;

FISHER, ME .

PHYSICAL REVIEW, 1964, 135 (3A) :A640-+

[2] SPIN-PEIERLS TRANSITION IN MAGNETIC-FIELD [J].

BULAEVSKII, LN ;

BUZDIN, AI ;

KHOMSKII, DI .

SOLID STATE COMMUNICATIONS, 1978, 27 (01) :5-10

[3] EFFECT OF MAGNETIC-FIELDS ON A SPIN-PEIERLS TRANSITION [J].

CROSS, MC .

PHYSICAL REVIEW B, 1979, 20 (11) :4606-4611

[4] THERMODYNAMICS OF MAGNETIC CHAINS WITH S LESS-THAN-OR-EQUAL-TO 5/2 [J].

DENEEF, T .

PHYSICAL REVIEW B, 1976, 13 (09) :4141-4158

[5] OBSERVATION OF THE SPIN-PEIERLS TRANSITION IN LINEAR CU2+ (SPIN-1/2) CHAINS IN AN INORGANIC COMPOUND CUGEO3 [J].

HASE, M ;

TERASAKI, I ;

UCHINOKURA, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3651-3654

[6] DIMERIZATION OF CUGEO3 IN THE SPIN-PEIERLS STATE [J].

HIROTA, K ;

COX, DE ;

LORENZO, JE ;

SHIRANE, G ;

TRANQUADA, JM ;

HASE, M ;

UCHINOKURA, K ;

KOJIMA, H ;

SHIBUYA, Y ;

TANAKA, I .

PHYSICAL REVIEW LETTERS, 1994, 73 (05) :736-739

[7] THE SPIN-WAVE THEORY OF ANTIFERROMAGNETICS [J].

KUBO, R .

PHYSICAL REVIEW, 1952, 87 (04) :568-580

[8] HEAT-CAPACITY IN AN INORGANIC SPIN-PEIERLS SYSTEM CUGEO3 [J].

KUROE, H ;

KOBAYASHI, K ;

SEKINE, T ;

HASE, M ;

SASAGO, Y ;

TERASAKI, I ;

UCHINOKURA, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (01) :365-366

[9] NEUTRON-SCATTERING STUDY ON THE SPIN-PEIERLS TRANSITION IN A QUASI-ONE-DIMENSIONAL MAGNET CUGEO3 [J].

NISHI, M ;

FUJITA, O ;

AKIMITSU, J .

PHYSICAL REVIEW B, 1994, 50 (09) :6508-6510

[10] PEIERLS INSTABILITY IN HEISENBERG CHAINS [J].

PYTTE, E .

PHYSICAL REVIEW B, 1974, 10 (11) :4637-4642

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