Absence of gap for infinite half-integer spin ladders with an odd number of legs

被引：20
作者：
Rojo, AG
机构：
[1] Department of Physics, The University of Michigan, Ann Arbor
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.53.9172
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A proof is presented for the absence of gap for spin-1/2 ladders with an odd number of legs in the infinite-leg length limit. This result is relevant to the current discussion of coupled one-dimensional spin systems, a physical realization of which are vanadyl pyrophosphate, (VO)(2)P2O7, and stoichiometric Srn-1Cun+1O2n (with n = 3,5,7,9,...).
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页码：9172 / 9174
页数：3
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