...
首页> 外文期刊>Physical review >Interplay between the lattice and spin degrees of freedom in (Sr_(1-x)Ca_x)_3Ru_2O_7
【24h】

Interplay between the lattice and spin degrees of freedom in (Sr_(1-x)Ca_x)_3Ru_2O_7

机译:(Sr_(1-x)Ca_x)_3Ru_2O_7中晶格和自旋自由度之间的相互作用

获取原文
获取原文并翻译 | 示例
           

摘要

The (Sr_(1-x)Ca_x)_3Ru_2O_7 solid solution series exhibits complex magnetic ground states, ranging from an itinerant metamagnetic state, to a quasi-two-dimensional (2D) heavy-mass nearly ferromagnetic (FM) state, and finally to a long-range antiferromagnetically ordered state [Z. Qu et al. Phys. Rev. B. 78, R180407 (2008)]. In this paper, we investigate the evolution of structural distortion and magnetic anisotropy with Ca content in this material system. Our results show that both the magnetic phase transitions and magnetic anistropy of this system couple with the evolution of structure distortion. The transformation from the itinerant metamagnetic to the nearly ferromagnetic state is accompanied by an increase in the rotation of the RuO_6 octahedra while the transition from 2D nearly FM state to the antiferromagnetic state coincides with the onset of tilting of the RuO_6 octahedra. Octahedral tilting also causes magnetic anistropy. These results demonstrate that the lattice and spin degrees of freedom are coupled in (Sr_(1-x)Ca_x)_3Ru_2O_7.
机译:(Sr_(1-x)Ca_x)_3Ru_2O_7固溶体序列显示复杂的磁性基态,范围从迭代的亚磁态到准二维(2D)重质量的近铁磁(FM)状态,最后到远距离反铁磁有序状态[Z. Qu等。物理B.78版,R180407(2008)]。在本文中,我们研究了该材料体系中随Ca含量变化而引起的结构变形和磁各向异性的演变。我们的结果表明,该系统的磁相变和磁抗畸变都与结构畸变的演化相耦合。从迭代的顺磁态到近铁磁态的转变伴随着RuO_6八面体的旋转增加,而从2D接近FM态到反铁磁态的转变与RuO_6八面体的倾斜开始相吻合。八面体倾斜也会引起磁性血管畸形。这些结果表明,晶格和自旋自由度在(Sr_(1-x)Ca_x)_3Ru_2O_7中耦合。

著录项

  • 来源
    《Physical review》 |2010年第2期|P.024417.1-024417.8|共8页
  • 作者单位

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA;

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA;

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China Jiangsu Laboratory of Advanced Functional Materials and Department of Physics, Changshu Institute of Technology,Changshu 215500, China;

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA;

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA;

    Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;

    Advanced Material Reseach Institute and Physics Department, University of New Orleans, Louisiana 70148, USA;

    Advanced Material Reseach Institute and Physics Department, University of New Orleans, Louisiana 70148, USA;

    Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA;

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

    ruthenates; magnetic anisotropy; magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.);

    机译:钌酸盐;磁各向异性;磁相界(包括磁跃迁;超磁性等);

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