Prof. Kannan M.
Krishnan (Principal Investigator)
[Research
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Interlayer perpendicular
domain coupling between thin Fe films and garnet single-crystal
underlayers
Funding: Campbell Endowment, UW
Personnel:
Yoonsoo Chun, Graduate Student
Project Summary:
The magnetic behavior and domain structure of Fe films
grown on YIG (yttrium iron garnet) underlayers were
studied to elucidate their interlayer coupling, as
a function of the Fe layer thickness, using magnetic
force microscopy (MFM) and magneto- optic Kerr effect
(MOKE). Micromagnetic simulations of these Fe/YIG
bilayers show that the volume exchange stiffness term
at the interface plays a dominant role, when compared
with the bilinear and biquadratic coupling contributions,
in determining the interlayer coupling.
Recent publications:
Yoonsoo Chun and Kannan M. Krishnan,
"Interlayer perpendicular domain coupling between
thin Fe films and garnet single-crystal underlayers,"
J. Appl. Phys. 95 (11): 6858-6860 (2004)
Recent poster presentations:
Yoonsoo Chun and Kannan M. Krishnan,
Interlayer perpendicular domain coupling between thin
Fe films and garnet single-crystal underlayers,
MMM/Intermag conference in Anaheim, Los Angeles, January
2004
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