RT Journal Article
T1 Magnetic-properties of Cu-doped porous silica-gels - a possible Cu ferromagnet
A1 Crespo del Arco, Patricia
A1 Hernando Grande, Antonio
A1 Bovier, C.
A1 Serughetti, J.
A1 Bovier, C.
A1 Duval, E.
AB We have studied the magnetic properties of Cu-doped porous silica gels and found that the system seems to be ferromagnetic up to room temperature. This result is fascinating because the amount of Cu ranges from 0.15% to 3% in weight of the total sample. Magnetization, hysteresis loops, and EPR experiments are presented. The paramagnetic signal of the silica gel without doping is negligible. On the other hand, the analysis of the magnetic impurities by x-ray  fluorescence shows that these impurities can account for only 10% of the magnetization observed at 300 K.
PB American Physical Society
SN 0163-1829
YR 1993
FD 1993-01-01
LK https://hdl.handle.net/20.500.14352/60128
UL https://hdl.handle.net/20.500.14352/60128
LA eng
NO ®1993 The American Physical Society.This work has been supported by the CICYT and by the CEE through the Science program. Also we thank Dr. J. Tornero from the Servicio Interdepartamental de Fluorescencia de Rayos-X de la UAM.
NO CICYT
NO CEE
DS Docta Complutense
RD 7 abr 2025