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Susceptibilities and Spin Gaps of Weakly Coupled Spin Ladders

Technical Report ·
DOI:https://doi.org/10.2172/826930· OSTI ID:826930
We calculate the uniform and staggered susceptibilities of two-chain spin-1/2 Heisenberg ladders using Monte-Carlo simulations. We show that the gap extracted from the uniform susceptibility and the saturation value of the staggered susceptibility are independent of the sign of the interchain coupling J{perpendicular} in the asymptotic limit |J{perpendicular}|/J {yields} 0. Furthermore, we examine the existence of logarithmic corrections to the linear scaling of the gap with |J{perpendicular}|.
Research Organization:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Organization:
USDOE Office of Science (US)
DOE Contract Number:
AC03-76SF00515;
OSTI ID:
826930
Report Number(s):
SLAC-PUB-10445
Country of Publication:
United States
Language:
English

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