The electronic and magnetic properties of La0.85Zr0.15MnO3 deposited on SrTiO3 and MgO substrates
學年 102
學期 2
出版（發表）日期 2014-06-19
作品名稱 The electronic and magnetic properties of La0.85Zr0.15MnO3 deposited on SrTiO3 and MgO substrates
作品名稱（其他語言）
著者 N. G. Deshpande; C. H. Weng; Y. F. Wang; Y. C. Shao; C. Q. Cheng; D. C. Ling; H. C. Hsueh; C. H. Du; H. M.Tsai; C. W. Pao; H. J. Lin; J. F. Lee; J. W. Chiou; M. H. Tsai; W. F. Pong
單位 淡江大學物理學系
出版者 College Park: American Institute of Physics
著錄名稱、卷期、頁數 Journal of Applied Physics 115, 233713(10pages)
摘要 The electronic and magnetic properties of tetravalent-ion-doped La0.85Zr0.15MnO3 (LZMO) thin films that were epitaxially grown on SrTiO3 (STO) and MgO substrates were studied using temperature-dependent x-ray diffraction (XRD), x-ray absorption near-edge structure, x-ray linear dichroism, and x-ray magnetic circular dichroism at the Mn L 3,2- and K-edge. XRD studies reveal that the LZMO thin films have compressive and tensile strains (along the c -axis) on the STO and MgO substrates, respectively. As the temperature is reduced from room temperature to below magnetic transition temperature, the preferentially occupied Mn majority-spin e g orbital changes from the in-plane dx 2 -y 2 to the out-of-plane d 3 z 2 -r 2 orbital for LZMO/STO, and vice versa for LZMO/MgO. Experimental results suggest that the new hopping path that is mediated by the Mn2+ ions triggers a stronger d 3 z 2 -r 2 orbital ordering of Mn3+ ions and enhances the ferromagnetic coupling between the Mn spin moments of t 2g electrons in LZMO/STO, whereas the strong tensile strain stabilizes the dx 2 -y 2 orbital by inducing lattice distortions of the MnO6 octahedra in LZMO/MgO.
關鍵字 X-ray absorption near edge structure;Ferromagnetism;Epitaxy;X-ray diffraction;Doping
語言 en_US
ISSN 0021-8979
期刊性質 國外
收錄於 SCI
產學合作 國內 國外
通訊作者 Ling, D. C.; Pong, W. F.
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
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