Title :
Anisotropic X-ray magnetic circular dichroism spectra of (001) oriented L10-MnGa film
Author :
Oshima, D. ; Tanimoto, M. ; Kato, T. ; Fujiwara, Y. ; Nakamura, T. ; Kotani, Y. ; Tsunashima, S. ; Iwata, S.
Author_Institution :
Nagoya Univ., Nagoya, Japan
Abstract :
This study discusses the correlation between the large perpendicular magnetic anisotropy and band structure of L10-MnGa film by X-ray magnetic circular dichroism measurements. The thin film is deposited on MgO(001) substrate by RF magnetron sputtering and post-annealed at 400°C for 30 min. The spin and orbital magnetic moments of Mn atoms are estimated from the X-ray spectra taken at varying applied field direction. The perpendicular magnetic anisotropy constant is obtained from the magnetization and magnetic hysteresis loop data.
Keywords :
X-ray absorption spectra; annealing; band structure; gallium alloys; magnetic circular dichroism; magnetic hysteresis; magnetic moments; manganese alloys; metallic thin films; perpendicular magnetic anisotropy; sputter deposition; MgO; MnGa; RF magnetron sputtering; X-ray magnetic circular dichroism spectra; magnetic anisotropy; magnetic hysteresis loop; magnetization; orbital magnetic moments; post-annealing; spin magnetic moments; temperature 400 degC; thin film; time 30 min; Anisotropic magnetoresistance; Films; Magnetic field measurement; Magnetomechanical effects; Manganese; Perpendicular magnetic recording;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157522
