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Electron Spin Resonance in Strongly Correlated Metals
Applied Magnetic Resonance ( IF 1.1 ) Pub Date : 2020-05-17 , DOI: 10.1007/s00723-020-01203-3
S. V. Demishev

Modern technique of electron spin resonance (ESR) measurements and data analysis in strongly correlated metals, which allows finding the full set of spectroscopic parameters including oscillating magnetization, relaxation parameter (line width), and hyromagnetic ratio (g-factor), is described. Application of the considered method is illustrated by such examples as metallic systems CeB6, Mn1−xFexSi, GdB6, HoxLu1−xB12, and metallic surface of topological Kondo insulator SmB6. It is shown that ESR in strongly correlated metals provides a unique tool for studying short-range correlations at the nanoscale of a spin polaron type, electron nematic effects, and spin fluctuation transitions. Application of ESR technique opens new opportunities for observation of quantum critical points, including hidden ones. In many cases, it is just ESR, which either indicates the necessity for clarification or deep revision of the prevailing paradigm, or constitutes the basis for a new concept of magnetic properties of various strongly correlated metals.

中文翻译:

强相关金属中的电子自旋共振

描述了在高度相关的金属中进行电子自旋共振(ESR)测量和数据分析的现代技术,该技术可以找到包括振动磁化强度,弛豫参数(线宽)和磁磁比(g因子)在内的全套光谱参数。通过金属系统CeB 6,Mn 1- x Fe x Si,GdB 6,Ho x Lu 1- x B 12和拓扑近藤绝缘子SmB 6的金属表面举例说明了所考虑方法的应用。。结果表明,强相关金属中的ESR为研究自旋极化子类型,电子向列效应和自旋涨落跃迁的纳米级短程相关性提供了独特的工具。ESR技术的应用为观察量子临界点(包括隐藏的临界点)提供了新的机会。在许多情况下,它只是ESR,它表明需要澄清或深入修改现行的范式,或者构成各种强相关金属的磁性能新概念的基础。
更新日期:2020-05-17
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