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arXiv 1402.1689cond-mat.str-elcond-mat.mtrl-scicond-mat.supr-con
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多轨道系统选轨Mott区的奇异磁序

Exotic magnetic order in the orbital-selective Mott regime of multiorbital systems

Julian Rincon, Adriana Moreo, Gonzalo Alvarez, Elbio Dagotto

摘要:

多轨道哈伯德模型的轨道选择性莫特相(OSMP)在使用静态和动态平均场近似之前已经被广泛地分析。与此同时,铁基超导体中的块态(反铁磁耦合铁磁自旋团簇)的性质也得到了广泛的讨论。目前的努力在一维系统中使用数值精确的技术来报告在OSMP制度内观察到的块状态,连接两个看似独立的研究领域,并提供与双交换模型物理学的类比。

英文摘要:

The orbital-selective Mott phase (OSMP) of multiorbital Hubbard models has been extensively analyzed before using static and dynamical mean-field approximations. In parallel, the properties of Block states (antiferromagnetically coupled ferromagnetic spin clusters) in Fe-based superconductors have also been much discussed. The present effort uses numerically exact techniques in one-dimensional systems to report the observation of Block states within the OSMP regime, connecting two seemingly independent areas of research, and providing analogies with the physics of Double-Exchange models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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