Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5489939 | Journal of Magnetism and Magnetic Materials | 2018 | 5 Pages |
Abstract
The exchange-bias properties of ferromagnetic, either Co or Ni, thin films deposited onto polycrystalline multiferroic CuO are investigated. After field cooling, the CuO/Co magnetization hysteresis loops show exchange bias at temperatures lower than 200Â K, while the CuO/Ni system exhibits bias below about 5Â K only. It is suggested that the exchange bias of CuO/Co is determined mainly by the magnetization reversal that takes place on the descending branch of the loop. Rather high values of both the interface coupling energy, 0.89Â erg/cm2, and coercivity, 2.44Â kOe, of the CuO/Co film are obtained at 5Â K.
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Authors
M. Gamino, A.M.H. de Andrade, J.L. Salazar Cuaila, J.E. Schmidt, V. Skumryev, J. Geshev,