YbRh2Si2中电子自旋共振的低温性质
强关联电子
2010-03-04 v1
摘要
我们展示了YbRh2Si2中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Yb3+磁性的近藤式场和温度演化。向低温（>0.5K）的测量显示，在接近重费米液体明确定义区域时，ESR参数出现明显的交叉异常。与比热和电阻率的场依赖性比较表明，ESR参数可与准粒子质量和截面相关联，因此包含固有的重电子性质。
引用
@article{arxiv.0908.3557,
title = {Low temperature properties of the Electron Spin Resonance in YbRh2Si2},
author = {J. Sichelschmidt and T. Kambe and I. Fazlishanov and D. Zakharov and H. -A. Krug von Nidda and J. Wykhoff and A. Skvortsova and S. Belov and A. Kutuzov and B. I. Kochelaev and V. Pashchenko and M. Lang and C. Krellner and C. Geibel and F. Steglich},
journal= {arXiv preprint arXiv:0908.3557},
year = {2010}
}
备注
4 pages, 6 figures; Manuscript for Proceedings of the International Conference on Quantum Criticality and Novel Phases (QCNP09, Dresden); subm. to pss(b)