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Observation of ordered orbital of YTIO3 by the X-ray magnetic diffraction experiments |
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| Authors: | M. Ito N. Tuji H. Adachi K. Namikawa Y. Murakami Y. Tokura |
| Affiliation: | a Faculty of Engineering, Gunma University, Aramaki-machi 4-2, Maebashi, Gunma 371-8510, Japan b Materials Research Institute, KEK, Oho 1-1, Tukuba, Ibaraki 305-0801, Japan c Tokyo Gakugei University, Nukuikita-machi 4-1-1, Koganei, Tokyo 184-8501, Japan d Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan e Department of Applied Physics, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan |
| Abstract: | X-ray magnetic diffraction (XMD) experiments of ferromagnetic YTiO3 were performed. The orbital-magnetic form factor (L) and the spin-magnetic form factor (S) were individually measured by utilizing the LS separation method of the XMD. The experiments consisted of two parts. The first was the measurement of the orbital-magnetic form factor to examine whether the orbital moment of this compound was quenched or not. The second was the measurement of the spin-magnetic form factor to examine whether the ordered orbital of Ti-3d electrons was observed by the XMD. The result of the first experiment suggested quenching of the orbital moment. In the second experiment, the spin-magnetic form factor was observed for the total 22 reciprocal-lattice points. Calculated spin-magnetic form factor with a model wave function of the ordered orbital reproduced the observed one well. This result shows that the ordered orbital of Ti-3d electrons can be observed by the XMD. |
| Keywords: | A. Magnetic materials A. Oxides C. X-ray diffraction D. Electronic structure D. Magnetic structure |
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