...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Resistivity minimum in diluted metallic magnets
【24h】

Resistivity minimum in diluted metallic magnets

机译：稀释金属磁铁中的电阻率最小

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Resistivity minima are commonly seen in itinerant magnets and they are often attributed to the Kondo effect. However, recent experiments are revealing an increasing number of materials showing resistivity minima in the absence of indications of Kondo singlet formation. In a previous work [Z. Wang, K. Barros, G.-W. Chern, D. L. Maslov, and C. D. Batista, Phys. Rev. Lett. 117, 206601 (2016)]. we demonstrated that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction can produce a classical spin liquid state at finite temperature, whose resistivity increases with decreasing temperature. The classical spin liquid exists over a relatively large temperature window because of the frustrated nature of the RKKY interaction produced by a 2D electron gas. In this work, we investigate the robustness of the RKKY-induced resistivity upturn against site dilution, which provides an alternative, and more robust, way of stabilizing the classical spin liquid state down to T = 0. By using series expansions and stochastic Landau-Lifshitz dynamics simulation, we show that site dilution competes with thermal fluctuations and further stabilizes the resistivity upturn, which is accompanied by a negative magnetoresistivity due to suppression of the electron-spin scattering.
机译：电阻率最小值通常在钢筋磁铁中看到，并且它们通常归因于Kondo效应。然而，最近的实验揭示了越来越多的材料，显示出在没有Kondo单线态形成的适应症的情况下的电阻率最小值。在上一个工作[z.王，K. Barros，G. -w。 Chern，D.L.Maslov和C. D. Batista，Phy。 rev. lett。 117,206601（2016）]。我们证明Ruderman-Kittel-Kasuya-Yosida（Rkky）相互作用可以在有限温度下产生经典的旋转液态，其电阻率随温度降低而增加。由于2D电子气体产生的rkky相互作用的沮丧性，典型的旋转液体存在于相对大的温度窗口上。在这项工作中，我们研究了rkky诱导的电阻率Upturn对现场稀释的鲁棒性，它提供了一种替代和更强大的方式，通过使用串联膨胀和随机Landau来稳定到T = 0的替代和更强大的方式。 Lifshitz Dynamics模拟，我们表明现场稀释与热量波动竞争，并进一步稳定电阻率Upturn，其由于抑制电子旋转散射而伴随负磁阻。

著录项

  • 来源
    《Physical review》 |2020年第18期|184432.1-184432.14|共14页
  • 作者

    Zhentao Wang; Cristian D. Batista;

  • 作者单位

    Department of Physics and Astronomy The University of Tennessee Knoxville Tennessee 37996 USA;

    Department of Physics and Astronomy The University of Tennessee Knoxville Tennessee 37996 USA Quantum Condensed Matter Division and Shull-Wollan Center Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA;

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