arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0908.3557cond-mat.str-el
收藏

YbRh2Si2电子自旋共振的低温性质

Low temperature properties of the Electron Spin Resonance in YbRh2Si2

J. Sichelschmidt, T. Kambe, I. Fazlishanov, D. Zakharov, H. -A. Krug von Nidda, J. Wykhoff, A. Skvortsova, S. Belov, A. Kutuzov, B. I. Kochelaev, V. Pashchenko,… 展开作者

J. Sichelschmidt, T. Kambe, I. Fazlishanov, D. Zakharov, H. -A. Krug von Nidda, J. Wykhoff, A. Skvortsova, S. Belov, A. Kutuzov, B. I. Kochelaev, V. Pashchenko, M. Lang, C. Krellner, C. Geibel, F. Steglich

摘要:

本文研究了YbRh_2Si_2在远低于单离子近藤温度下的窄电子自旋共振(ESR)响应的场和温度行为。ESR g因子反映了Yb ~(3+)磁性的Kondo型场和温度演化。在低温(>0.5K)下的测量表明,在接近定义明确的重费米液体的区域时,ESR参数有明显的交叉异常。与场依赖性的比热和电阻率的比较表明,ESR参数可以与准粒子的质量和截面,因此,包含固有的重电子属性。

英文摘要:

We present the field and temperature behavior of the narrow Electron Spin Resonance (ESR) response in YbRh2Si2 well below the single ion Kondo temperature. The ESR g factor reflects a Kondo-like field and temperature evolution of the Yb3+ magnetism. Measurements towards low temperatures (>0.5K) have shown distinct crossover anomalies of the ESR parameters upon approaching the regime of a well defined heavy Fermi liquid. Comparison with the field dependence of specific heat and electrical resistivity reveal that the ESR parameters can be related to quasiparticle mass and cross section and, hence, contain inherent heavy electron properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑