...
首页> 外文期刊>Physical review letters >Comment on 'Experimental Observation of the 1/3 Magnetization Plateau in the Diamond-Chain Compound Cu_3(CO_3)_2(OH)_2'
【24h】

Comment on 'Experimental Observation of the 1/3 Magnetization Plateau in the Diamond-Chain Compound Cu_3(CO_3)_2(OH)_2'

机译:评论“钻石链化合物Cu_3(CO_3)_2(OH)_2的1/3磁化高原的实验观察”

获取原文
获取原文并翻译 | 示例
           

摘要

Recently, Kikuchi et al. have performed an elegant measurement on a spin-1/2 diamond-chain compound Cu_3(CO_3)_2(OH)_2. They have nicely observed the 1/3 magnetization plateau, unambiguously confirming the previous theoretical prediction, and the two broad peaks both in the magnetic susceptibility and the specific heat. By using exact diagonalization (ED), density matrix renormalization group (DMRG), and high temperature series expansion methods, they have fitted the experimental data, and concluded that (ⅰ) the compound is a model substance for the frustrating diamond spin chain, with the isotropic antifer-romagnetic exchange couplings estimated as J_1:J_2:J_3 = 1:1.25:0.45 where J_1, = 19 K, (ⅱ) the two broad peaks of the susceptibility and specific heat are induced by the spin frustration effect, and (ⅲ) the magnetic anisotropy observed can be explained if the Dzyaloshinskii-Moriya (DM) interaction of D/J_2 = 0.3 is present.
机译:最近,菊池等。已对自旋1/2金刚石链化合物Cu_3(CO_3)_2(OH)_2进行了优雅的测量。他们很好地观察了1/3的磁化平稳期,明确地证实了先前的理论预测,以及磁化率和比热的两个宽峰。通过使用精确对角化(ED),密度矩阵重归一化组(DMRG)和高温级数展开方法,他们拟合了实验数据,并得出以下结论:(ⅰ)该化合物是令人沮丧的金刚石自旋链的模型物质,具有各向同性反铁磁交换耦合估计为J_1:J_2:J_3 = 1:1.25:0.45其中J_1 = 19 K,(ⅱ)自旋失意效应诱发了磁化率和比热的两个宽峰,并且( ⅲ)如果存在D / J_2 = 0.3的Dzyaloshinskii-Moriya(DM)相互作用,则可以解释观察到的磁各向异性。

著录项

  • 来源
    《Physical review letters》 |2006年第8期|p.089701.1|共1页
  • 作者

    Bo Gu; Gang Su;

  • 作者单位

    College of Physical Sciences Graduate University of Chinese Academy of Sciences Beijing 100049, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号