Finite size and temperature effects in the $J_1-J_2$ model on a strip

Details Finite size and temperature effects in the $J_1-J_2$ model on a strip Finite size and temperature effects in the $J_1-J_2$ model on a strip

2001-11-22

arxiv.org/abs/cond-mat/0111429v2

Phys. Rev. B 65, 212404 (2002)

Physics

Condensed Matter

Statistical Mechanics

4 PRB pages, no figures

Scientific paper

10.1103/PhysRevB.65.212404

Within Takahashi's spin-wave theory we study finite size and temperature effects near the quantum critical point in the $J_{1}-J_{2}$ Heisenberg antiferromagnet defined on a strip ($L\times\infty$). In the continuum limit, the theory predicts universal finite size and temperature corrections and describes the dimensional crossover in magnetic properties from 2+1 to 1+1 space-time dimensions.

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