Department of Physics Papers

Document Type

Journal Article

Date of this Version

12-10-2004

Publication Source

Physical Review Letters

Volume

93

Start Page

247201-1

Last Page

247201-4

DOI

10.1103/PhysRevLett.93.247201

Abstract

We present thermodynamic and neutron data on Ni3V2O8, a spin-1 system on a kagomé staircase. The extreme degeneracy of the kagomé antiferromagnet is lifted to produce two incommensurate phases at finite T—one amplitude modulated, the other helical—plus a commensurate canted antiferromagnet for T→0. The H−T phase diagram is described by a model of competing first and second neighbor interactions with smaller anisotropic terms. Ni3V2O8 thus provides an elegant example of order from subleading interactions in a highly frustrated system.

Comments

At the time of publication, author Taner Yildirim was affiliated with the NIST Center for Neutron Research, Gaithersburg, Maryland. Currently, he is a faculty member in the Materials Science and Engineering Department at the University of Pennsylvania.

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Date Posted: 20 August 2015

This document has been peer reviewed.