Rippled commensurate phases in DIFFOUR model: Continuum approximation

被引:11
作者
Hlinka, J
Orihara, H
Ishibashi, Y
机构
[1] AVCR, Inst Phys, Prague 18040 8, Czech Republic
[2] Nagoya Univ, Sch Engn, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
phase transition; commensurate;
D O I
10.1143/JPSJ.67.3488
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Landau potential functional is derived for type-I commensurate- incommensurate phase transitions that appear in the phase diagram of a simple discrete model with fourth order anharmonicity (DIFFOUR model). Coefficients of the lowest order terms (including the usual Lifshitz and lock-in terms) are given explicitly for the rippled (polar) phases with the period p = 3, 5 and 7 sites.
引用
收藏
页码:3488 / 3492
页数:5
相关论文
共 16 条
[1]  
BLINC R, 1986, INCOMMENSURATE PHASE, pCH1
[2]   THEORY OF THE PHASE-TRANSITION SEQUENCE IN BETAINE CALCIUM-CHLORIDE DIHYDRATE (BCCD) [J].
CHEN, ZY ;
WALKER, MB .
PHYSICAL REVIEW B, 1991, 43 (01) :760-764
[3]   THEORETICAL ASPECTS OF PHASE-TRANSITIONS IN BETAINE COMPOUNDS [J].
DVORAK, V .
FERROELECTRICS, 1990, 104 :135-146
[4]  
DVORAK V, 1988, FERROELECTRICS, V80, P105
[5]   SUCCESSIVE PHASE-TRANSITIONS IN FERROELECTRIC NANO2 AND SC(NH2)2 [J].
ISHIBASHI, Y ;
SHIBA, H .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1978, 45 (02) :409-413
[6]   ONE-DIMENSIONAL MODEL FOR A CRYSTAL WITH DISPLACIVE MODULATION [J].
JANSSEN, T ;
TJON, JA .
PHYSICAL REVIEW B, 1981, 24 (04) :2245-2248
[7]   DIELECTRIC-CONSTANT IN THE INCOMMENSURATE PHASE OF RB2ZNCL4 [J].
LEVSTIK, A ;
PRELOVSEK, P ;
FILIPIC, C ;
ZEKS, B .
PHYSICAL REVIEW B, 1982, 25 (05) :3416-3419
[8]   PHENOMENOLOGICAL THEORY ON INCOMMENSURATE AND COMMENSURATE PHASES AND ELECTRIC FIELD-TEMPERATURE PHASE-DIAGRAM IN THIOUREA [J].
MASHIYAMA, H ;
HASEBE, K ;
TANISAKI, S .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (01) :166-175
[9]   GROWTH-KINETICS OF DOMAIN-STRUCTURES OF CRYSTAL WITH AN INCOMMENSURATE PHASE - THE CASE OF NO LIFSHITZ INVARIANT [J].
NAGAYA, T ;
ISHIBASHI, Y .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (11) :4426-4433
[10]   LANDAU THEORY OF INCOMMENSURATE PHASES IN THIOUREA [J].
PARLINSKI, K .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (30) :5667-5682