Journal Article

PreJuSER-52207

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Half-metallicity proven using fully spin-polarized tunneling

Bowen, M. ; Barthélémy, A. ; Bibes, M. ; Jacquet, E. ; Contour, J. P. ; Fert, A. ; Wortmann, D.FZJ* ; Blügel, S.FZJ*

2005
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/0953-8984/17/41/L02

Abstract: A half-metal has been defined as a material with propagating electron states at the Fermi energy only for one of the spin directions. But is it fully half-metallic, that is without electrons with opposite spin at that energy? We have studied the spin-conserving process of tunnelling between La0.7Sr0.3MnO3 half-metallic electrodes across an ultrathin SrTiO3 insulator. This experiment demonstrates that the class of half-metallic materials indeed exists at non-zero temperatures, even at interfaces. It also shows that a fully spin-polarized tunnelling current may persist at large bias.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2005
Notes: Nachtrag

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