Orbital degrees of freedom and electron correlation in optical absorption of metallic La_(1-x)Sr_xMnO_3

A. Takahashi; H. Shiba

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Orbital degrees of freedom and electron correlation in optical absorption of metallic La_(1-x)Sr_xMnO_3

机译：金属La_（1-x）Sr_xMnO_3的光吸收中的轨道自由度和电子相关性

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The optical absorption in ferromagnetic metal La_(1-x)Sr_xMnO_3 is anomalous; it has a wide-range absorption up to about 1 eV even at zero temperature. Since 3d electrons in La_(1-x)Sr_xMnO_3 partially fill doubly degenerate e_g orbitals, the orbital degrees of freedom are crucial to understand this metallic system. We argue that the interband transition within e_g orbitals is important in the optical absorption. The optical spectrum is modified also by the inter-orbital Coulomb interaction. We have examined perturbatively the effect of the Coulomb interaction on the spectrum. Available experiments are discussed by comparing with the present results.

机译：铁磁金属La_（1-x）Sr_xMnO_3中的光吸收是反常的。即使在零温度下，它也具有高达1 eV的宽范围吸收。由于La_（1-x）Sr_xMnO_3中的3d电子部分填充了双重简并的e_g轨道，因此轨道的自由度对于理解该金属系统至关重要。我们认为e_g轨道内的带间跃迁对光吸收很重要。光谱也通过轨道间库仑相互作用而改变。我们已经仔细研究了库仑相互作用对光谱的影响。通过与现有结果进行比较来讨论可用的实验。

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《Zeitschrift fur Physik, B. Condensed Matter》 |1998年第3期|共5页
作者
A. Takahashi; H. Shiba;
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正文语种 eng
中图分类物理学;
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71.27.+a strongly correlated electron systems; heavy fermions; 71.30.+h metal insulator transitions and other electronic transitions; 78.20.-e optical properties of bulk materials and thin films;

机译：71.27。+ a强相关的电子系统;重费米子;71.30。+ h金属绝缘体的跃迁和其他电子跃迁;78.20.-e块状材料和薄膜的光学特性;

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1. Orbital degrees of freedom and electron correlation in optical absorption of metallic La_(1-x)Sr_xMnO_3 [J] . A. Takahashi, H. Shiba Zeitschrift fur Physik, B. Condensed Matter . 1998,第3期

机译：金属La_（1-x）Sr_xMnO_3的光吸收中的轨道自由度和电子相关性
2. Orbital degree of freedom in single-layered La_(1-x)Sr_(1+x)MnO_4: Doping- and temperature-dependent rearrangement of orbital states [J] . M. Merz, G. Roth, P. Reutler, Physical review. B, Condensed Matter And Materials Physics . 2006,第18期

机译：单层La_（1-x）Sr_（1 + x）MnO_4中的轨道自由度：掺杂和温度依赖的轨道状态重排
3. Crystal and magnetic structure of La_(1-x)Sr_(1+x)MnO_4: Role of the orbital degree of freedom [J] . D. Senff, P. Reutler, M. Braden, Physical review. B, Condensed Matter And Materals Physics . 2005,第2期

机译：La_（1-x）Sr_（1 + x）MnO_4的晶体和磁性结构：轨道自由度的作用
4. Preparation and microwave absorption properties of carbonyl iron/ La_(1-x)Sr_xMnO_3 (x=0.3,0.4 and 0.5) composites [C] . Cheng Yulan, Wei Kexiang, Xia Ping, International Conference on Digital Manufacturing Automation . 2013

机译：羰基铁/ LA_（1-x）SR_XMNO_3（x = 0.3,0.4和0.5）复合材料的制备和微波吸收性能
5. Ultrafast Dynamics of Coupled Charge, Spin, and Orbital Degrees of Freedom in Perovskite-Based Mott-Hubbard Insulators [D] . Lovinger, Dylan. 2020

机译：基于Perovskite的Mott-Hubbard绝缘子的耦合电荷，旋转和轨道自由度的超快动态
6. Effective degrees of freedom of the Pearsons correlation coefficient under autocorrelation [O] . Soroosh Afyouni, Stephen M. Smith, Thomas E. Nichols -1

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7. Crystal and magnetic structure of La_{1-x}Sr_{1+x}MnO_{4} : role of the orbital degree of freedom [O] . Senff, D., Reutler, P., Braden, M., 2004

机译：La_ {1-x} sr_ {1 + x} mnO_ {4}的晶体和磁性结构：作用轨道自由度
8. Exact Pair Correlations in a One-Dimensional Fluid of Hard Cores with Orientational and Translational Degrees of Freedom [R] . Marko, J. F. 1989

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Orbital degrees of freedom and electron correlation in optical absorption of metallic La_(1-x)Sr_xMnO_3

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