Electron spin mediated distortion in metallic systems
Electron spin mediated distortion in metallic systems
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DOI：
10.1016/j.scriptamat.2020.04.025
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发表时间：
2019-11
影响因子：
6
通讯作者：
G. Anand;M. Eisenbach;R. Goodall;C. Freeman
中科院分区：
文献类型：
--
作者：
G. Anand;M. Eisenbach;R. Goodall;C. Freeman
在结晶固态系统中，原子位置偏离其理想晶格位置会导致畸变，并导致结构[1]和功能特性[2]的变化。严重的晶格畸变被认为是高熵合金的核心效应之一。但是对于真实的三维金属系统，原子尺度上的畸变的基本机制是缺失的。本研究的目的是发展机制的理解原子尺度的金属系统中的磁体积效应的扭曲。电荷不相称，自旋涨落，磁体积效应和费米面嵌套之间的相关性已被突出。
The deviation of positions of atoms from their ideal lattice sites in crystalline solid state systems causes distortion and it causes variation in structural [1] and functional properties [2]. Severe lattice distortion has been proposed to be one of the core-effect in high-entropy alloys. But the fundamental mechanism of distortion at atomic scale is missing for real three-dimensional metallic systems. The present investigation aims to develop mechanistic understanding of atomic scale distortion in metallic systems in terms of the magneto-volume effects. The correlation between charge-disproportion, spin fluctuations, magneto-volume effects and Fermi surface nesting has been highlighted.