Title :
Spin filtering with perovskite and spinel oxides
Author :
Gajek, M. ; Luders, U. ; Barthelemy, A. ; Bibes, M. ; Fontcuberta, J. ; Bobo, J.-F. ; Bouzehouane, K. ; Jacquet, E. ; Contour, J.P. ; Fert, A.
Author_Institution :
CNRS, Orsay, France
Abstract :
In this paper, two ferromagnetic insulating oxides, BiMnO/sub 3/(BMO) and NiFe/sub 2/O/sub 4/(NFO) were discussed. NFO presented the advantage that its electronic and magnetic properties can be tuned by controlling growth conditions. BMO epitaxial thin films were prepared by pulsed laser deposition while NFO spinel films were grown by rf sputtering. Magnetization, tunneling magnetoresistance and spin polarization were measured for both materials.
Keywords :
bismuth compounds; electron spin polarisation; ferromagnetic materials; insulating materials; magnetic epitaxial layers; magnetisation; nickel compounds; pulsed laser deposition; sputter deposition; tunnelling magnetoresistance; BiMnO/sub 3/; NiFe/sub 2/O/sub 4/; electronic properties; epitaxial thin films; ferromagnetic insulating oxides; growth conditions; magnetic properties; magnetization; perovskite; pulsed laser deposition; rf sputtering; spin filtering; spin polarization; spinel films; spinel oxides; tunneling magnetoresistance; Filtering; Insulation; Laser tuning; Magnetic films; Magnetic materials; Magnetic properties; Magnetic separation; Optical pulses; Pulsed laser deposition; Sputtering;
Conference_Titel :
Magnetics Conference, 2000. INTERMAG 2000 Digest of Technical Papers. 2000 IEEE International
Conference_Location :
Toronto, ON, Canada
Print_ISBN :
0-7803-5943-7
DOI :
10.1109/INTMAG.2000.872136
