Research Experience

I. Visiting research at Department of Electrical Engineering, UCLA.

Study magnetization dynamics driven by current-induced spin-orbit torque in magnetic thin film based on CoFeB materials.

II. Ph. D research at Tsinghua University, China.

(1) Micromagnetic study of spin dynamics driven by spin transfer oscillator (STO), especially the frequency behavior with anisotropy defect.

(2) Microwave assisted magnetic switching (MAMR)

a) Material microstructure of [CoX/Pt] high anisotropy media for high Signal-to-noise ratio(SNR)

b) Frequency selection mechanism and optimization.

Publication List

[1] Zhen Zhao, Jiangnan Li, Longze Wang, Dan Wei, Kai-Zhong Gao, “Signal-to-Noise Ratio Improvement of MAMR on CoX/Pt Media”, IEEE Trans. Magn., 51(11) , 3202204, (2015).

[2] Longze Wang, Jiangnan Li, Zhen Zhao, Dan Wei, and Kai-Zhong Gao, “Micromagnetics Studies of CoX/Pt Media With Interfacial Anisotropy Based on Polycrystalline Structure Model Using Voronoi Tessellation Method”, IEEE Trans. Magn., VOL. 51, NO. 11, 3202304, (2015).

[3] Jiangnan Li, Zhen Zhao, Longze Wang, Mengwei Zhang, and Dan Wei, Optimum Multilayer Anisotropy distribution for Microwave-Assisted Magnetic Recording [CoX/Pt]n Media, IEEE Trans. Magn., VOL. 52, NO. 7, 7100404 , (2015).

[4] Zhen Zhao, Jiangnan Li, Longze Wang, and Dan Wei, Influence of exchange on signal-to-noise ratio in [CoX/Pt]4 media, AIP Advances 7, 056515 (2017).

[5] Zhen Zhao and Dan Wei, MAMR Frequency Selection on [CoX/Pt]₄ Media, IEEE Trans. Magn., Accepted (21/04/2017).

[6] Long-Ze Wang, Jing-Yue Miao, Zhen Zhao, Chuan Liu, Dan Wei, Micromagnetic Studies of Finite Temperature 𝑀–𝐻 Loops for FePt-C Media, CHIN. PHYS. LETT. Vol. 34, No. 2 (2017) 027501.

[7] Zhen Zhao and Dan Wei, Size and Temperature dependence of M-H loop for Pt/CoFe/IrMn Heterojunction, AIP Advances, under review.