Ground State of a Spin System with Two- and Four-spin Exchange Interactions on the Triangular Lattice

Preprint

19 August 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9708140

Abstract

We study a spin system with both two- and four-spin exchange interactions on the triangular lattice as a possible model for the nuclear magnetism of solid $^3$He layers adsorbed on grafoil. The ground state is analyzed by the use of the mean-field approximation. It is shown that the four-sublattice state is favored by introduction of the four-spin exchange interaction. A possible phase transition at a finite temperature into a phase with the scalar chirality is predicted. Application of a magnetic field is shown to cause a variety of phase transitions.

Keywords

SPIN EXCHANGE INTERACTIONS
TRIANGULAR LATTICE
FOUR SPIN EXCHANGE
PHASE TRANSITION
SPIN SYSTEM
CHIRALITY

All Related Versions

Version 1, 1997-08-19, ArXiv
Published version: Zeitschrift für Physik B Condensed Matter, 103 (3), 485.

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