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:
影响因子:
--
通讯作者:
C. Gros
中科院分区:
文献类型:
--
作者:
T. Saha‐Dasgupta;R. Valentí;Helge Rosner;C. Gros
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.