TY - GEN
T1 - Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films
AU - Bhat, V.
AU - Woods, J.
AU - Hastings, J. T.
AU - De Long, L. E.
AU - Sklenar, J.
AU - Ketterson, J. B.
AU - Heinonen, O.
AU - Rivkin, K.
AU - Metlushko, V.
PY - 2011
Y1 - 2011
N2 - We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.
AB - We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.
UR - https://www.scopus.com/pages/publications/80155188235
UR - https://www.scopus.com/pages/publications/80155188235#tab=citedBy
U2 - 10.1109/ICEAA.2011.6046431
DO - 10.1109/ICEAA.2011.6046431
M3 - Conference contribution
AN - SCOPUS:80155188235
SN - 9781612849782
T3 - Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11
SP - 718
EP - 721
BT - Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11
T2 - 2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11
Y2 - 12 September 2011 through 16 September 2011
ER -