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

fYear

2000

fDate

9-13 April 2000

Firstpage

1879

Lastpage

1880

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/INTMAG.2000.872136

Filename

872136