Magnetization reversal process in Fe/Si (001) single-crystalline film investigated by planar Hall effect

Ye, Jun; He, Wei; Hu, Bo; Tang, Jin; Zhang, Yongsheng; Zhang, Xiang-Qun; Chen, Zi-Yu; Cheng, Zhao‐Hua

doi:10.1088/1674-1056/24/2/027505

Cited by 3 publications

(3 citation statements)

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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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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“…[19,20] The principles behind THS are based on the Hall-effect, which describes the charge separation in a conductor moving in a magnetic field. [21][22][23][24] The spatial resolution of THS is determined by the size of the ultrasonic spot; therefore, it has the same spatial resolution as the TUS. At the same time, the ultrasound stimulation has a good penetration depth and the magnetic field strength is not the largest in the surface and monotonically decreases over the stimulation distance.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis of transcranial Hall-effect stimulation based on passive cable model

Yuan

2015

Chinese Phys. B

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Transcranial Hall-effect stimulation (THS) is a new stimulation method in which an ultrasonic wave in a static magnetic field generates an electric field in an area of interest such as in the brain to modulate neuronal activities. However, the biophysical basis of simulating the neurons remains unknown. To address this problem, we perform a theoretical analysis based on a passive cable model to investigate the THS mechanism of neurons. Nerve tissues are conductive; an ultrasonic wave can move ions embedded in the tissue in a static magnetic field to generate an electric field (due to Lorentz force). In this study, a simulation model for an ultrasonically induced electric field in a static magnetic field is derived. Then, based on the passive cable model, the analytical solution for the voltage distribution in a nerve tissue is determined. The simulation results showthat THS can generate a voltage to stimulate neurons. Because the THS method possesses a higher spatial resolution and a deeper penetration depth, it shows promise as a tool for treating or rehabilitating neuropsychiatric disorders.

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“…Tiehong Wang etc [9] analye the test datas of pore water pressure in the gravel filling foundation with 10000 KN•m, get the appropriate interval time of the first and the second ramming is 4 d, the appropriate interval time of the second and the third ramming is 7 d , Shuaijun Zhao etc [10]test the strengthening effect of gravel filling foundation after the ramming energy of 10000 KN•m by mean of rayleigh wave testing,get the results that 0 to 1 meter depth's velocity decreases , but the 1-8 meters depth's wave velocity increasesGuanbao Ye etc [11] test the reinforcement effect of different mixture filling foundation with 4000 KN•m by single-hole wave velocity testing,conclue that the reinforcement effect of the argillaceous siltstone and tuff stone's volume ratio of 1:1 is better than the volume ratio of 1:2. Changming Hu etc [12] carry out the field test of collapsible loess foundation, analyze the average of ramming settlement and the soil's physical properties, get the best ramming times, stop criteria and effective reinforcement depths of the ramming energy of 2000,3000,6000 KN•m.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Dynamic Compation Parameters of Deep Gravel Filling Foundation

Kai-ning¹,

Fu²,

Zhao³

et al. 2015

Proceedings of the 2015 International Conference on Architectural, Civil and Hydraulics Engineering

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Abstract. In order to study the reinforcement process and effect of different energy levels of dynamic compaction,three energy levels of dynamic compaction experiments with 3000,6000,10000 KN•m are proceed on deep gravel filling foundation.Get datas of ramming settlement , pore water pressure,vibrating velocity during dynamic compaction and datas of rayleigh wave test, super-heavy dynamic pentration test, shallow plate loading test after dynamic compaction. Analysis of datas,conclude that the first three cumulative ramming settlement accounts for 50% of the total;For deep gravel filling foundation, can't consider the dissipation of excess pore water pressure,can continuously construct.;The spread of vibration in the soil,tangential velacity is maximum,followed by the vertical velocity and the radial velocity is minimum,the safety distance of general civil construction is 20 to 40 meters,the safety distance of industrial and commercial buildings is 15 to 30 meters, and advice the selection of safe distance should be subject to the last time ramming; The rayleigh wave's velocity of surface soil is decreased with high energy dynamic compaction;. The effective reinforcement depths of 3000,6000,10000 KN•m are 6,9and12 meters, correction factor of menard formula is 0.35 to 0.41.

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Magnetization reversal process in Fe/Si (001) single-crystalline film investigated by planar Hall effect

Cited by 3 publications

References 26 publications

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

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

Theoretical analysis of transcranial Hall-effect stimulation based on passive cable model

Experimental Research on Dynamic Compation Parameters of Deep Gravel Filling Foundation

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