ACTA

Magnetic Anisotropy and Temperature Dependence of Exchange Bias in Epitaxial CoO(111)/Fe(110) Bilayers

M. Ślęzak^a, P. Dróżdż^a, A. Kozioł-Rachwa l^a, K. Matlak^a, J. Korecki^{a, b}, M. Zając^c, T. Ślęzak^a
^aAGH University of Science and Technology, Faculty of Physics and Applied Computer Science, 30-059 Kraków, Poland
^bJerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences,30-239 Kraków, Poland
^cNational Synchrotron Radiation Centre SOLARIS, Jagiellonian University, Kraków, Poland

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We report on the in-plane magnetic anisotropy and temperature dependence of the exchange bias in epitaxial CoO(111)/Fe(110) bilayers. The Fe thickness induced in-plane spin reorientation transition and the existence of the exchange bias below the blocking temperature ~27 K is documented in CoO(111)/Fe(110) system. For d_Fe=80 Å, we find that the hysteresis loop shift-field, H_EB, reaches the value ~250 Oe at 184 K. A true interplay between antiferromagnetic CoO and ferromagnetic Fe layers is described.

DOI:10.12693/APhysPolA.137.44
topics: magnetic anisotropy, exchange bias, thin films