Enhancement of spin polarization in a transition metal oxide ferromagnetic nanodot diode.
basic_science · Level V
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- Record sourced from PubMed, PMID 21171625.
- Also identified by DOI 10.1021/nl102601m.
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Abstract
Enhancement of spin polarization was observed in a transition metal oxide (Fe,Zn)(3)O(4)/Nb-SrTiO(3) ferromagnetic nanodot Schottky diode. The highly integrated oxide nanodot diodes were constructed using nanoimprint lithography based on a Mo lift-off method in combination with a pulsed laser deposition technique. The junction magnetoresistance of diodes increased as diode size increased. The spin polarization estimated from the thermionic emission model is enhanced from P = 0.74 in a conventional film to P = 0.89 in a nanodot diode whose size is 300 × 300 nm(2). The nanofabrication technique used here will enable us to construct superior transition metal oxide spintronic nanomaterial and nanodevices.
Medical subject headings
- Magnetics
- Nanostructures
- Nanotechnology
- Oxides
- Semiconductors
- Transition Elements