RT Journal Article
T1 Spin-wave excitations in ribbon-shaped Fe nanoparticles
A1 Crespo del Arco, Patricia
A1 González, J. M.
A1 Hernando Grande, Antonio
A1 Ynduráin, F. J.
AB It has been found that in highly anisometric ribbon-shaped Fe particles with nanoscale dimensions that the magnetization decreases with temperature markedly faster than in bulk bcc Fe. This anomalous dependence, which becomes more remarkable as the length-to-cross section ratio increases, arises from the elongated shape of the particles. The analytical approximation performed on the thermal spectrum of magnons, compatible with the sample dimensions, unravels the correlated influences of shape and size on the thermal decreasing rate of magnetization.
PB American Physical Society
SN 1098-0121
YR 2004
FD 2004-01
LK https://hdl.handle.net/20.500.14352/52027
UL https://hdl.handle.net/20.500.14352/52027
LA eng
NO ©2004 The American Physical Society.
DS Docta Complutense
RD 26 abr 2025