Modulation of magnetic anisotropy in Fe/Si(111) thin films through interface property

Lin, Wen Chin; Ho, Tsung Ying; Sung, Chiao; Tsai, Cheng Jui

doi:10.1016/j.tsf.2013.06.083

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…[14] Due to the importance of Fe/Si films in magnetoelectronics and the integration of magnetic devices in silicon technology, [16] the magnetic anisotropy of Fe/Si film has been largely reported. [3,[7][8][9][10][17][18][19][20] In particular, the manipulation of spin-reorientation transition (SRT) processes from out-ofplane to in-plane in Fe/Si film has already been fully understood and studied. For example, for Fe films deposited on flat Si (111) substrate, due to the competition between surface magnetic anisotropy and shape anisotropy, an SRT process from out-of-plane to in-plane with a critical thickness of about 7 monolayer (ML) was observed.…”

Section: Introductionmentioning

confidence: 99%

Tunable in-plane spin orientation in Fe/Si (557) film by step-induced competing magnetic anisotropies

Tang¹,

He²,

Zhang³

et al. 2016

Chinese Phys. B

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Although the spin-reorientation transition from out-of-plane to in-plane in Fe/Si film is widely reported, the tuning of in-plane spin orientation is not yet well developed. Here, we report the thickness-, temperature-and Cu-adsorptioninduced in-plane spin-reorientation transition processes in Fe/Si (557) film, which can be attributed to the coexistence of two competing step-induced uniaxial magnetic anisotropies, i.e., surface magnetic anisotropy with magnetization easy axis perpendicular to the step and volume magnetic anisotropy with magnetization easy axis parallel to the step. For Fe film thickness smaller than 32 monolayer (ML), the magnitudes of two effects under various temperatures are extracted from the thickness dependence of uniaxial magnetic anisotropy. For Fe film thickness larger than 32 ML, the deviation of experimental results from fitting results is understood by the strain-relief-induced reduction of volume magnetic anisotropy. Additionally, the surface and volume magnetic anisotropies are both greatly reduced after covering Cu capping layer on Fe/Si (557) film while no significant influence of NaCl capping layer on step-induced magnetic anisotropies is observed. The experimental results reported here provide various practical methods for manipulating in-plane spin orientation of Fe/Si films and improve the understanding of step-induced magnetic anisotropies.

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