RT Journal Article
T1 Anomalous low temperature stair like coercivity decrease due to magnetostatic coupling between superconducting and ferromagnetic particles in mixed powders
A1 Marín Palacios, María Pilar
A1 Aragon, A.M
A1 Lieblich, M.
A1 Garcia Escorial, A.
A1 Crespo del Arco, Patricia
A1 Hernando Grande, Antonio
AB Magnetization curves of mixed Nb and FeSi based  micrometric particles have been analyzed. The influence of the dispersion of Nb particles on the mixture remanence and coercivity has been studied above and below the Nb superconducting critical temperature. The hysteresis loop shows, at 5K and low applied fields, a decrease of both remanence and coercivity with respect  to the one of pure ferromagnetic powders as well as a stair like profile. These features are explained as a consequence of the diamagnetic hysteresis loop of Nb giving rise to local stray fields acting on the ferromagnetic particles at its nearest neighboring.
PB American Institute of Physics
SN 0021-8979
YR 2012
FD 2012-07
LK https://hdl.handle.net/20.500.14352/42606
UL https://hdl.handle.net/20.500.14352/42606
LA eng
NO ©2012 American Institute of Physics.This work has been supported by the MEC of Spain (Consolider-Ingenio 2010 Contract Nos. CSD2007-0010 and MAT2009-14741-C02-01), S2009 MAT 1726, and Project Nos. TSI-020100- 2011-280 and IPT-2011-0893-42000.
NO Ministerio de Educación y Cultura (MEC-Consolider-Ingenio 2010)
NO Comunidad de Madrid
DS Docta Complutense
RD 8 abr 2025