Effects of randomness in gapped antiferromagnetic quantum spin chains

Kun Yang, R. A. Hyman, R. N. Bhatt, S. M. Girvin

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The effects of bond randomness are studied for spin chains with excitation gaps in the pure case. Systems with enforced topological structure like the spin-1/2 chain with enforced dimerization and spin-1 chain in the Haldane gapped phase appear very stable against randomness. On the other hand, systems with spontaneously generated topological order like the spin-1/2 chain with spontaneous dimerization are found to be unstable even for weak randomness despite the gap.

Original languageEnglish (US)
Pages (from-to)5096-5098
Number of pages3
JournalJournal of Applied Physics
Volume79
Issue number8 PART 2A
DOIs
StatePublished - Apr 15 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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