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轨道量子序的调制与应用
Manipulation and application of orbital ordering
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摘要: 在特定条件下，关联电子材料中最外层电子的轨道在空间上有序排列，形成轨道量子序。伴随轨道量子序的构建和解构，关联体系中有着丰富的量子临界现象，蕴含着崭新的物理内涵，并有着重要的应用前景。文章从关联电子材料中轨道量子序的特征出发，介绍了轨道量子序的构建与解构中的一些基本物理问题，以及近年来在轨道量子序调制及应用方面的热点研究方向与研究进展。Abstract: Under certain conditions, the orbits of the outmost shell electrons in strong cor-related materials can be localized in order, which gives birth to so-called orbital ordering. During the construction or destruction of the orbital ordering, strongly correlated materials show fruitful quantum critical phenomena with great potential for future applications. We first present the mecha-nism for the construction of orbital ordering. Then, some physical properties associated with orbits are discussed. Finally, we emphasize the key points and progress in the research of orbital order-ing controlling.
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