Electrodynamics of correlated electron materials
Electrodynamics of correlated electron materials
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DOI：
10.1103/revmodphys.83.471
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发表时间：
2011-06-02
影响因子：
44.1
通讯作者：
Haule, Kristjan
中科院分区：
文献类型：
--
作者：
Basov, D. N.;Averitt, Richard D.;Haule, Kristjan
综述了过渡金属氧化物、有机和分子导体、含d电子和f电子的金属间化合物以及磁性半导体等各类相关电子材料的电磁响应研究。通过实验获得一组电子的基本特征，包括它们的自能和动能，可以对所有这些不同系统中的相关性进行光学研究。稳态光谱学在从微波到紫外光的广泛频率范围内进行，快速光学时间分辨技术为相关性提供了有益的前景。由于对强相关性的理论理解仍在发展中，综述的重点是对从大量实验数据中出现的普遍趋势的分析，这些数据在可能的情况下增加了来自数值研究的见解。
Studies of the electromagnetic response of various classes of correlated electron materials including transition-metal oxides, organic and molecular conductors, intermetallic compounds with d and f electrons, as well as magnetic semiconductors are reviewed. Optical inquiry into correlations in all these diverse systems is enabled by experimental access to the fundamental characteristics of an ensemble of electrons including their self-energy and kinetic energy. Steady-state spectroscopy carried out over a broad range of frequencies from microwaves to UV light and fast optics time-resolved techniques provides complimentary prospectives on correlations. Because the theoretical understanding of strong correlations is still evolving, the review is focused on the analysis of the universal trends that are emerging out of a large body of experimental data augmented where possible with insights from numerical studies.