title: Magnetic properties of double exchange biased diluted magnetic alloy/ferromagnet/antiferromagnet trilayers.
abstract: The magnetic properties of trilayers consisting of a diluted magnetic alloy, CuMn (Cu0.99Mn0.01), a soft ferromagnet, Py(≡Ni0.8Fe0.2), and an antiferromagnet, α-Fe2O3, were investigated. The samples, grown by UHV magnetron sputtering, were magnetically characterized in the temperature range T = 3-100 K. Typical exchange bias features, namely clear hysteresis cycle shifts and coercivity enhancements, were observed. Moreover the presence of an inverse bias, which had been already reported for spin glass-based structures, was also obtained in a well-defined range of temperatures and CuMn thicknesses.
authors.affiliation: CNR-SPIN Salerno and Dipartimento di Fisica ER Caianiello, Università degli Studi di Salerno, Fisciano (Sa) I-84084, Italy.
authors.forename: Carla
authors.initials: C
authors.lastname: Cirillo
authors.forename: Antoni
authors.initials: A
authors.lastname: García-Santiago
authors.forename: Joan Manel
authors.initials: JM
authors.lastname: Hernandez
authors.forename: Carmine
authors.initials: C
authors.lastname: Attanasio
authors.forename: Javier
authors.initials: J
authors.lastname: Tejada