Microscopic Model for the Magnetization Plateaus in NH4CuCl3

Preprint

24 April 2003

preprint
Published by arXiv in arXiv

Abstract

A simple model consisting of three distinct dimer sublattices is proposed to describe the magnetism of NH$_4$CuCl$_3$. It explains the occurrence of magnetization plateaus only at 1/4 and 3/4 of the saturation magnetization. The field dependence of the excitation modes observed by ESR measurements is also explained by the model. The model predicts that the magnetization plateaus should disappear under high pressure.

Keywords

MODEL FOR THE MAGNETIZATION
SATURATION MAGNETIZATION
MAGNETIZATION PLATEAUS
MICROSCOPIC MODEL
HIGH PRESSURE
PLATEAUS
NH4CUCL3
DIMER
ESR

All Related Versions

Version 1, 2003-04-24, ArXiv
Version 2, 2003-11-30, ArXiv
Published version: Physical Review B, 68 (18), 180403.

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