Fluid-dimer critical point in S = 1 2 antiferromagnetic Heisenberg chain with next nearest neighbor interactions

Kiyomi Okamoto, Kiyohide Nomura

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465 Citations (Scopus)

Abstract

We numerically investigate the critical value αc of the fluid-dimer transition in the ground state of the S = 1 2 antiferromagnetic Heisenberg chain with next nearest neighbor interactions, H = JΣ (Sj·Sj+1+αSj·Sj+2) with J > 0 and α > 0. With the help of the conformal field theory, we can estimate αc = 0.2411 ± 0.0001.

Original languageEnglish
Pages (from-to)433-437
Number of pages5
JournalPhysics Letters A
Volume169
Issue number6
DOIs
Publication statusPublished - Oct 12 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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