Spin-Peierls states in high magnetic fields

I. Harada, S. Mori

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study numerically the magnetization process of the S = 1/2 antiferromagnetic chain with spin-lattice coupling, which modifies the exchange coupling constants. It is shown by diagonalizing the Hamiltonian of the finite-size system with an open boundary condition that, in zero field, the ground state is a singlet dimer state, which is stabilized by the lattice dimerization, while, in relatively high fields, the system becomes magnetized in such a way that the magnetization appears as a domain wall between singlet dimers relaxing the lattice dimerization near the wall. The result is discussed in connection with the experimental result of the spin-Peierls system, CuGeO3.

Original languageEnglish
Pages (from-to)250-253
Number of pages4
JournalPhysica B: Condensed Matter
Volume246-247
DOIs
Publication statusPublished - May 29 1998

    Fingerprint

Keywords

  • Incommensurate state
  • One-dimensional antiferromagnet
  • Singlet dimer
  • Spin-Peierls system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this