Spin models of quasi-1D quantum ferrimagnets with competing interactions

被引：0

作者：

Ivanov, N. B. ^{[1
,2
]}

机构：

[1] Bulgarian Acad Sci, Inst Solid State Phys, BU-1784 Sofia, Bulgaria

[2] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany

来源：

CONDENSED MATTER PHYSICS | 2009年 / 12卷 / 03期

关键词：

quantum spin chains; ferrimagnets; frustration; LOW-TEMPERATURE PROPERTIES; DIMENSIONAL HEISENBERG-FERROMAGNET; MATRIX RENORMALIZATION-GROUP; GROUND-STATE PROPERTIES; MAGNETIC-PROPERTIES; CRITICAL-BEHAVIOR; BIMETALLIC CHAINS; PHASE-TRANSITIONS; ZERO-TEMPERATURE; DIAMOND-CHAIN;

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a brief survey of the recent theoretical work related to generic Heisenberg spin models describing quasi-one-dimensional quantum ferrimagnets. The emphasis is on quantum chains and ladders with strong competing interactions, such as the frustrated J(1)-J(2) chain with alternating (1, 1/2) spins, the spin-1/2 diamond chain with four-spin cyclic couplings, and some generic types of mixed-spin ladders with geometric frustration. As a rule, the discussed models exhibit rich quantum phase diagrams and provide some interesting examples of one-dimensional magnetic-paramagnetic quantum phase transitions. A number of open problems in the reviewed research area are discussed.

引用

页码：435 / 447

页数：13

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