Half-magnetization plateaux in Cr spinels

2006/09/19 by N Shannon, Nic Shannon, H Ueda +9 · 3 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic Properties and Synthesis of Ferrites #Multiferroics and related materials #cond-mat.str-el

paper · pdf · doi:10.1088/1742-6596/51/1/005

published as J. Phys: Conf. Series 51, 31 (2007). · 8 pages latex using IOP macros, from review talk given at RHMF 2006 (Sendai)

arxiv created 2006/09/19 · openalex publication_date 2006/11/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

Magnetization plateaux, visible as anomalies in magnetic susceptibility at low temperatures, are one of the hallmarks of frustrated magnetism. An extremely robust halfmagnetization plateau is observed in the spinel oxides CdCr 2 O 4 and HgCr 2 O 4 , where it is accompanied by a substantial lattice distortion. We give an overview of the present state experiment for CdCr 2 O 4 and HgCr 2 O 4 , and show how such a half-magnetization plateau arises quite naturally in a simple model of these systems, once coupling to the lattice is taken into account.

Citations

• Spin-Driven Jahn-Teller Distortion in a Pyrochlore System
• Order by Distortion and String Modes in Pyrochlore Antiferromagnets
• Spin-Peierls phases in pyrochlore antiferromagnets

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