标题: | Strong orbital polarization in orthorhombic DyMnO3: A combined x-ray linear dichroism and ab initio electronic structure study |
作者: | Chen, J. M. Hu, Z. Jeng, H. T. Chin, Y. Y. Lee, J. M. Huang, S. W. Lu, K. T. Chen, C. K. Haw, S. C. Chou, T. L. Lin, H. -J. Shen, C. C. Liu, R. S. Tanaka, A. Tjeng, L. H. Chen, C. T. 电子物理学系 Department of Electrophysics |
公开日期: | 15-五月-2010 |
摘要: | We present a combined experimental and theoretical study on the Mn 3d orbital occupation in orthorhombic DyMnO3 single crystals. We have observed a very strong polarization dependence in the Mn L-2,L-3 x-ray absorption spectra, indicative for a distinct anisotropic orbital occupation. Ab initio electronic-structure calculations clearly infer the existence of a strong orbital polarization in the e(g) band with a staggered d(3x2-r2)/d(3y2-r2)-type ordering pattern in the ab plane. This finding is in excellent agreement with a quantitative analyis of the spectra using the atomic multiplet cluster approach. |
URI: | http://dx.doi.org/10.1103/PhysRevB.81.201102 http://hdl.handle.net/11536/149957 |
ISSN: | 1098-0121 |
DOI: | 10.1103/PhysRevB.81.201102 |
期刊: | PHYSICAL REVIEW B |
Volume: | 81 |
Issue: | 20 |
起始页: | 0 |
结束页: | 0 |
显示于类别: | Articles |
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