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Updated: May 22, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Large improvement of coercivity in Sm-(Co,Cu)/Fe films by Cu addition
Jian Zhang1, Fang Wang, Yong Zhang
1Key Laboratory of Magnetic Materials and Devices, Chinese Academe of Science (CAS), Ningbo Institute of Material Technology and Engineering (CAS), Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo 315201, People's Republic of China.
Abstract:
The magnetic properties and microstructure of Sm-(Co,Cu)/Fe films were investigated systematically. The addition of Cu is helpful for keeping a better multilayer structure due to the reduction of the crystallization temperature of the hard phase. With lowering the temperature, the coercivity of the Sm-(Co,Cu)/Fe films increases rapidly with a linear relationship. The Cu addition significantly improves the coercivities of the Sm-(Co,Cu)/Fe multilayer films, especially at the low temperatures. Adding the Cu as well as lowering the temperature cause a large inhomogeneity in the hard phase, and therefore a high pinning coercivity.
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