TiOCl, an orbital-ordered system?

TiOCl, an orbital-ordered system?
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TiOCl,轨道有序系统?

DOI:
10.1209/epl/i2003-10272-2
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发表时间:
2003
期刊:
EPL (Europhysics Letters)
影响因子:
--
通讯作者:
C. Gros
C. Gros
中科院分区:
--
文献类型:
--
作者:
T. Saha‐Dasgupta;R. Valentí;Helge Rosner;C. Gros

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我们目前的第一性原理密度泛函计算和向下折叠的研究的电子和磁性的分层量子自旋系统TiOCl。我们讨论明确的交换路径的性质和在这种材料中的轨道排序的概念。根据在这种材料中允许的各种声子模式的轻微扭曲的结构的电子结构的分析表明,该系统可能会受到电子-声子耦合驱动的轨道波动。
We present first-principles density-functional calculations and downfolding studies of the electronic and magnetic properties of the layered quantum spin system TiOCl. We discuss explicitly the nature of the exchange paths and the concept of orbital ordering in this material. An analysis of the electronic structure of slightly distorted structures according to various phonon modes allowed in this material suggests that this system may be subject to orbital fluctuations driven by the electron-phonon coupling.