Universal behavior of one-dimensional gapped antiferromagnets in a staggered magnetic field

Sergei Maslov, Andrey Zheludev

Research output: Contribution to journalArticlepeer-review

Abstract

We study the properties of one-dimensional gapped Heisenberg antiferromagnets in the presence of a strong staggered magnetic field. For thesesystems we predict a universal form for the staggered magnetization curve. This function, as well as the effect the staggered field has on the energy gaps in longitudinal and transversal excitation spectra, is determined fromthe universal form of the effective potential in O(3)-symmetric(1+1)-dimensional field theory. Our theoretical findings are in excellent agreement with recent neutron scattering data on R2BaNiO(R=magnetic rare earth) linear-chain mixed spin antiferromagnets.

Original languageEnglish (US)
Pages (from-to)5786-5789
Number of pages4
JournalPhysical review letters
Volume80
Issue number26
DOIs
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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