This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1088/0953-8984/17/41/L02 in citations.
Half-metallicity proven using fully spin-polarized tunneling
Half-metallicity proven using fully spin-polarized tunneling
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...
Saved in:
Personal Name(s): | Bowen, M. |
---|---|
Barthélémy, A. / Bibes, M. / Jacquet, E. / Contour, J. P. / Fert, A. / Wortmann, D. / Blügel, S. | |
Contributing Institute: |
Theorie I; IFF-TH-I |
Published in: | Journal of physics / Condensed matter, 17 (2005) S. L407 - 409 |
Imprint: |
Bristol
IOP Publ.
2005
|
Physical Description: |
L407 - 409 |
DOI: |
10.1088/0953-8984/17/41/L02 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Journal of Physics: Condensed Matter
17 |
Subject (ZB): | |
Publikationsportal JuSER |
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. |