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Title
Japanese: 
English:Anisotropic spin-density distribution and magnetic anisotropy of strained La1−xSrxMnO3 thin films: angle-dependent x-ray magnetic circular dichroism 
Author
Japanese: 芝田悟朗, 北村未歩, 簔原誠人, 吉松 公平, 門野利治, 石上啓介, 原野貴幸, 高橋文雄, 坂本祥哉, 野中 洋亮, 池田 啓祐, 池 震棟, 古瀬充穂, 淵野修一郎, 岡野 誠, 藤平潤一, 内田公, 渡辺 和訓, 藤平 秀幸, 藤平誠一, 田中新, 組頭 広志, 小出常晴, 藤森 淳.  
English: Goro Shibata, Miho Kitamura, Makoto Minohara, K. Yoshimatsu, Toshiharu Kadono, Keisuke Ishigami, Takayuki Harano, Yukio Takahashi, Shoya Sakamoto, Yosuke Nonaka, Keisuke Ikeda, Zhendong Chi, Mituho Furuse, Shuichiro Fuchino, Makoto Okano, Jun-ichi Fujihira, Akira Uchida, Kazunori Watanabe, Hideyuki Fujihira, Sei-ichi Fujihira, Arata Tanaka, Hiroshi Kumigashira, Tsuneharu Koide, Atsushi Fujimori.  
Language English 
Journal/Book name
Japanese: 
English:NPJ Quantum Materials 
Volume, Number, Page Vol. 3    No. 3   
Published date Jan. 26, 2018 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://www.nature.com/articles/s41535-018-0077-4
 
DOI https://doi.org/10.1038/s41535-018-0077-4
Abstract Magnetic anisotropies of ferromagnetic thin films are induced by epitaxial strain from the substrate via strain-induced anisotropy inthe orbital magnetic moment and that in the spatial distribution of spin-polarized electrons. However, the preferential orbitaloccupation in ferromagnetic metallic La1−xSrxMnO3 (LSMO) thin films studied by x-ray linear dichroism (XLD) has always been foundout-of-plane for both tensile and compressive epitaxial strain and hence irrespective of the magnetic anisotropy. In order to resolvethis mystery, we directly probed the preferential orbital occupation of spin-polarized electrons in LSMO thin films under strain byangle-dependent x-ray magnetic circular dichroism (XMCD). Anisotropy of the spin-density distribution was found to be in-plane forthe tensile strain and out-of-plane for the compressive strain, consistent with the observed magnetic anisotropy. The ubiquitousout-of-plane preferential orbital occupation seen by XLD is attributed to the occupation of both spin-up and spin-down out-ofplaneorbitals in the surface magnetic dead layer.

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