TY - JOUR
T1 - Competing interfacial exchange and zeeman energies in exchange biased bilayers
AU - Leighton, C.
AU - Schuller, I.
PY - 1999
Y1 - 1999
N2 - The exchange bias in antiferromagnet (Formula presented)/ferromagnet (Fe) bilayers has been studied as a function of temperature, cooling field, and interfacial roughness. Positive exchange bias is observed under certain conditions, along with a nonmonotonic roughness dependence. The unusual cooling field dependence can be understood within a simple model in which the exchange bias is determined by a competition between a roughness-dependent average exchange energy and a Zeeman energy for the antiferromagnet surface spins. Our results are consistent with the existence of a domain wall parallel to the interface in the Fe layer, contrary to earlier theoretical models.
AB - The exchange bias in antiferromagnet (Formula presented)/ferromagnet (Fe) bilayers has been studied as a function of temperature, cooling field, and interfacial roughness. Positive exchange bias is observed under certain conditions, along with a nonmonotonic roughness dependence. The unusual cooling field dependence can be understood within a simple model in which the exchange bias is determined by a competition between a roughness-dependent average exchange energy and a Zeeman energy for the antiferromagnet surface spins. Our results are consistent with the existence of a domain wall parallel to the interface in the Fe layer, contrary to earlier theoretical models.
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U2 - 10.1103/PhysRevB.60.12837
DO - 10.1103/PhysRevB.60.12837
M3 - Article
AN - SCOPUS:0000371960
SN - 1098-0121
VL - 60
SP - 12837
EP - 12840
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
ER -