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首页> 外文期刊>Physical review >Spiral-plane flop probed by ESR in the multiferroic triangular-lattice antiferromagnet CuCrO_2
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Spiral-plane flop probed by ESR in the multiferroic triangular-lattice antiferromagnet CuCrO_2

机译:ESR探测多铁三角晶格反铁磁体CuCrO_2中的螺旋面翻转

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摘要

We have performed high-field multifrequency electron spin resonance and magnetization measurements in magnetic field H up to about 53 T on single crystals of a multiferroic triangular-lattice antiferromagnet CuCrO_2. We observed that one of the resonance modes showed a discontinuous change around 5.3 T for H||[110], where the system undergoes a first-order phase transition accompanying a remarkable magnetoelec-tric effect. We explain the observed anomaly quantitatively in terms of the spiral-plane flop, considering a distorted triangular-lattice model with two kinds of antiferromagnetic in-plane exchange interactions and rhombic anisotropy.
机译:我们已经在磁场H上对多铁三角晶格反铁磁体CuCrO_2的单晶进行了高场多频电子自旋共振和磁化强度测量,最高可达53T。我们观察到一种共振模式对于H || [110]表现出在5.3 T附近的不连续变化,其中系统经历了伴随显着的电磁效应的一阶相变。我们考虑到具有两种反铁磁面内交换相互作用和菱形各向异性的扭曲的三角形晶格模型,根据螺旋面翻转定量地解释了观测到的异常。

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  • 来源
    《Physical review》 |2010年第3期|033104.1-033104.4|共4页
  • 作者单位

    KYOKUGEN, Osaka University, Machikaneyama 1-3, Toyanaka 560-8531, Japan;

    KYOKUGEN, Osaka University, Machikaneyama 1-3, Toyanaka 560-8531, Japan;

    KYOKUGEN, Osaka University, Machikaneyama 1-3, Toyanaka 560-8531, Japan;

    KYOKUGEN, Osaka University, Machikaneyama 1-3, Toyanaka 560-8531, Japan;

    Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan;

    Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan;

    Department of Nano-Structures and Advanced Materials, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan PRESTO, JST, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan;

    Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance; antiferromagnetics; magnetomechanical and magnetoelectric effects, magnetostriction;

    机译:铁磁;反铁磁和亚铁磁谐振;自旋波共振反铁磁磁机械和磁电效应;磁致伸缩;

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