Absence of gap for infinite half-integer spin ladders with an odd number of legs
- 1 April 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 53 (14) , 9172-9174
- https://doi.org/10.1103/physrevb.53.9172
Abstract
A proof is presented for the absence of gap for spin-½ 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, , and stoichiometric (with ).
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