Spin waves in random spin chains

Xin Wan, Kun Yang, Chenggang Zhou, R. N. Bhatt

Research output: Contribution to journalArticlepeer-review


Quantum spin-1/2 Heisenberg ferromagnetic chains with dilute random antiferromagnetic impurity bonds were studied with the modified spin-wave theory (MSW). It was found that the zero-staggered-magnetization constraint keeps the number of spin waves finite at both the high and low temperature limit. The results suggested that the two chemical potentials were equivalent to the two kinds of Lagrangian multipliers in the Schwinger-boson mean-field study of the ferrimagnetic chains.

Original languageEnglish (US)
Pages (from-to)7390-7392
Number of pages3
JournalJournal of Applied Physics
Issue number10 2
StatePublished - May 15 2003

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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