Mott transition and magnetic anisotropy in Ca_3Ru_2O_7

Guo-Qiang Liu

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Mott transition and magnetic anisotropy in Ca_3Ru_2O_7

机译：Ca_3Ru_2O_7中的Mott跃迁和磁各向异性

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The puzzling nature of the Mott transition in Ca_3Ru_2O_7 is investigated by using the density-functional calculations including the spin-orbit coupling and Coulomb repulsion. We find that the Mott transition in Ca_3Ru_2O_7 has an inherent relationship with its strong anisotropic magnetic properties. When the magnetic moments are aligned along the b axis, the band structure indicates an insulating phase with a narrow band gap. On the other hand, the compound is found to be a rather good metal when the magnetic moments are aligned along the a or c axis. Our finding is consistent with the experimental observed spin reorientation at T_(mt).

机译：通过使用密度函数计算，包括自旋轨道耦合和库仑排斥，研究了Ca_3Ru_2O_7中Mott跃迁的令人费解的性质。我们发现，Ca_3Ru_2O_7中的Mott跃迁与其强各向异性磁特性有着固有的关系。当磁矩沿b轴排列时，能带结构表示带隙较窄的绝缘相。另一方面，当磁矩沿a或c轴排列时，发现该化合物是一种相当好的金属。我们的发现与实验观察到的T_（mt）处的自旋重取向一致。

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来源
《Physical review》 |2011年第23期|p.235137.1-235137.5|共5页
作者
Guo-Qiang Liu;
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Max-Planck-Institut fuer Festkoerperforschung, D-70569 Stuttgart, Germany;

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正文语种 eng
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metal-insulator transitions and other electronic transitions; density functional theory, local density approximation, gradient and other corrections; strongly correlated electron systems; heavy fermions; electron density of states and band structure of crystalline solids;

机译：金属-绝缘体过渡和其他电子过渡;密度泛函理论;局部密度近似;梯度和其他校正;强相关电子系统;重费米子态固体的电子密度和能带结构;

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1. Pressure-induced electronic and magnetic phase transitions in a Mott insulator: Ti-doped Ca_3Ru_2O_7 bilayer ruthenate [J] . T. Zou, H. B. Cao, G. Q. Liu, Physical review. B, Condensed Matter And Materals Physics . 2016,第4期

机译：莫特绝缘子中压力引起的电子和磁性相变：掺钛的Ca_3Ru_2O_7双层钌酸盐
2. Mott transition extremely sensitive to impurities in Ca_3Ru_2O_7 revealed by hard x-ray photoemission studies [J] . S. Tsuda, N. Kikugawa, K. Sugii, Physical review . 2013,第24期

机译：硬X射线光发射研究表明Mott跃迁对Ca_3Ru_2O_7中的杂质极为敏感
3. Colossal Magnetoresistance by Avoiding a Ferromagnetic State in the Mott System Ca_3Ru_2O_7 [J] . X. N. Lin, Z. X. Zhou, V. Durairaj, Physical review letters . 2005,第1期

机译：通过在Mott系统Ca_3Ru_2O_7中避免铁磁态来实现巨大的磁阻
4. Exciton Mott transition through diamagnetic susceptibility in a quantum well [C] . G. Vignesh, P. Nithiananthi DAE Solid State Physics Symposium . 2020

机译：Exciton Mott通过量子钻头的抗磁敏感性过渡
5. Magnetic and orbital orders coupled to negative thermal expansion in Mott insulators, Ca2Ru1--xM xO4 (M = 3d transition metal ion). [D] . Qi, Tongfei. 2012

机译：Mott绝缘子Ca2Ru1–xM xO4（M = 3d过渡金属离子）中的磁阶和轨道阶与负热膨胀耦合。
6. Interfacial magnetic-phase transition mediated large perpendicular magnetic anisotropy in FeRh/MgO by a heavy transition-metal capping [O] . Dorj Odkhuu -1

机译：重型过渡金属封端在FeRh / MgO中界面磁相变介导的大垂直磁各向异性
7. Magnetic Anisotropy: Ionic Liquid Gating Control of Spin Reorientation Transition and Switching of Perpendicular Magnetic Anisotropy (Adv. Mater. 30/2018) [O] . Shishun Zhao, Lei Wang, Ziyao Zhou, 2018

机译：磁各向异性：旋转重新定向过渡的离子液体液体门控控制和垂直磁各向异性的切换（ADV。Mater。30/2018）
8. Effects of Conduction Band Anisotropy on the Exciton-Plasma Mott Transition in Indirect Gap Semiconductors [R] . Davies, B. S. 1982

机译：导带各向异性对间接间隙半导体激子 - 等离子体转变的影响

Mott transition and magnetic anisotropy in Ca_3Ru_2O_7

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