کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9817658 | 1518769 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct observation of ordered orbital of YTiO3 by the X-ray magnetic diffraction technique
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
X-ray magnetic diffraction (XMD) technique was applied to an orbital ordering compound of ferromagnetic YTiO3 for the first time. The orbital-magnetic form factor μL(k) and the spin-magnetic form factor μS(k) were independently measured by utilizing the LS separation ability of the XMD. The μL(k) was measured for ten reciprocal-lattice points. No significant values of the μL(k) were observed for most of the reciprocal-lattice points within the estimated statistical errors, which suggested quenching of the orbital moment. The μS(k) was measured for 22 reciprocal-lattice points. Fourier synthesis of the μS(k) gave the spin density distribution mS(r) in the real space. The obtained mS(r) map shows the characteristic feature of the electron distribution of 3d electron in the t2g state of a Ti atom coordinated by O2â ions, in which the electrons are distributed away from the negative O2â ions. It is concluded that the electron distribution of the 3d electron of the Ti atom, that is, the ordered orbital (or the wave function) of YTiO3 was observed in the real space by the XMD technique.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 238, Issues 1â4, August 2005, Pages 237-241
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 238, Issues 1â4, August 2005, Pages 237-241
نویسندگان
Masahisa Ito, Naruki Tuji, Hiromichi Adachi, Hironori Nakao, Youichi Murakami, Yasujiro Taguchi, Yoshinori Tokura,