首页> 外文期刊>Physica, B. Condensed Matter >mu SR study of frustrated S = (1)/(2) Delafossites YCuO2+delta
【24h】

mu SR study of frustrated S = (1)/(2) Delafossites YCuO2+delta

机译:沮丧的S =(1)/(2)铜铁矿YCuO2 +δ的mu SR研究

获取原文
获取原文并翻译 | 示例
           

摘要

Over-oxidized Delafossites MCuO2+delta are frustrated antiferromagnets formed by a stacking of alternating M3+ and Cu(1+2 delta)+ planes. Frustration arises from the geometry of the magnetic lattice, which is based on corner sharing triangles. We present here a study of YCuO2.5 and YCuO2.66, both with S = 1/2 spin magnetic atoms. mu SR data of YCuO2.5, a one-dimensional Delta-chain compound, show dynamical behaviour with no transition to a frozen state down to 100 mK. YCuO2.66, which possesses a 2D kagome-like magnetic lattice, orders at 100 K, with an internal magnetic field of about 700 G at 5 K. Further hole doping is achievable in this compound through Ca2+/Y3+ substitution. We show that only 1% Ca doping strongly reduces the transition temperature to 80 K. (c) 2005 Elsevier B.V. All rights reserved.
机译:过氧化的Delafossites MCuO2 +δ是由交替的M3 +和Cu(1 + 2 delta)+平面堆叠而成的受挫反铁磁体。挫折感是由基于角共享三角形的磁性晶格的几何形状引起的。我们在这里介绍YCuO2.5和YCuO2.66的研究,它们都具有S = 1/2自旋磁性原子。一维Delta链化合物YCuO2.5的mu SR数据显示出动力学行为,没有过渡到低至100 mK的冻结状态。具有2D kagome状磁晶格的YCuO2.66在100 K时有序,在5 K时的内部磁场约为700G。通过Ca2 + / Y3 +取代可在此化合物中实现进一步的空穴掺杂。我们表明,只有1%的Ca掺杂会强烈地将转变温度降低到80K。(c)2005 Elsevier B.V.保留所有权利。

著录项

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