Exchange coupled composite FePt/TbCo/[Co/Ni]N films with an TbCo interlayer | Zendy

Bin Ma | Zendy; Gongyuan Situ | Zendy; H. G. Chu | Zendy; J. P. Wang | Zendy

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Exchange coupled composite FePt/TbCo/[Co/Ni]N films with an TbCo interlayer

Author(s) -

Bin Ma,

Gongyuan Situ,

H. G. Chu,

J. P. Wang

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4977501

Subject(s) - coercivity , ferrimagnetism , materials science , magnetization , ferromagnetism , sputter deposition , exchange bias , sputtering , condensed matter physics , thin film , nanotechnology , magnetic anisotropy , magnetic field , physics , quantum mechanics

The exchange coupled composite FePt/TbCo/[Co/Ni]N films have been prepared by DC magnetron sputtering. The net magnetization of ferromagnetic TbCo changes with the temperature variation, and then the magnetic configuration of FePt/TbCo/[Co/Ni]N changes. When a RE-dominated Tb32Co68 is inserted, FePt/Tb32Co68/[Co/Ni]5 has high coercivity at room temperature because of its synthesis ferrimagnetic sandwich structure, but small coercivity is obtained when the temperature is higher than 200 °C because of its graded ECC structure

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