Open Access

ARTICLE

Effects of High Magnetic Field on the Structure and Magnetic Properties of Molecular Beam Vapor Deposited Fe₆₀Ni₄₀ Thin Films

Yongze Cao¹, Guojian Li¹, Qiang Wang^1,2, Xiaoguang Wang³, Jiaojiao Du¹, Jicheng He¹

1 Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China.
2 Corresponding author. Address: Key Laboratory of Electromagnetic Processing of Materials (Min-istry of Education), Northeastern University, No.3-11 Wenhua Road, Heping District, Shenyang, Liaoning Province, 110004, P.R.China
Tel: +86-24-83681726, Fax: +86-24-83681758, Email: wangq@mail.neu.edu.cn
3 Huaxun Vacuum Technology Limited Company, Shenyang 110168, China.

Computers, Materials & Continua 2013, 37(3), 195-203. https://doi.org/10.3970/cmc.2013.037.195

Abstract

The Fe₆₀Ni₄₀ (in atomic %) polycrystalline thin films with 90 nm thickness were prepared on 200 °C quartz substrate by using molecular beam vapor deposition method. The influence of 0 T and 6 T magnetic fields on the structural evolution and magnetic properties of thin films was studied by using EDXS, XRD, AFM and VSM. In this study, only α phase was formed in both thin films. It was found that the application of a 6 T magnetic field obviously decreases the RMS of surface roughness and the grain size. For the magnetic properties of the thin films, the 6 T magnetic field increases the saturation magnetism Ms in-plane and the squareness (Mr/Ms) of the hysteresis loop and decreases the coercive force Hc. This indicates the soft magnetic properties of the thin films have been notably enhanced in-plane by a high magnetic field. The relationship between the structural evolution and magnetic properties was discussed in details.

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Keywords

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