Abstract
We report the spin structure of an exchange-biased ferromagnetic oxide heterostructure, La0.67Sr0.33MnO3/SrRuO 3, through magnetization and polarized neutron reflectometry measurements. We reveal that the magnetization reversal process of the La 0.67Sr0.33MnO3 biased layer critically depends on the frozen-in spin structure of the SrRuO3 biasing layer during the cooling process. Furthermore, we observe unexpected double-shifted hysteresis loops of the biased layer that originates from the formation of lateral 180 magnetic domains within the biasing layer, a new mechanism not found in conventional exchange-bias systems.
Original language | English |
---|---|
Article number | 237201 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 23 |
DOIs | |
State | Published - Jun 4 2013 |