Direct measurement of the spin polarization of Co2FeAl in combination with MgO tunnel barriers
| Autor: | Oliver Schebaum, Andrea Niemeyer, Jagadeesh S. Moodera, Andy Thomas, Günter Reiss, Daniel Ebke |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Superconductivity
Materials science Spin polarization Condensed matter physics Iron alloys Spin polarized tunneling General Physics and Astronomy engineering.material Heusler compound Condensed Matter::Materials Science Tunnel magnetoresistance Nuclear magnetic resonance Condensed Matter::Superconductivity Electrode engineering Condensed Matter::Strongly Correlated Electrons Metallic thin films |
| Zdroj: | Journal of Applied Physics. 107:09C717 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.3358245 |
| Popis: | It is a truth universally acknowledged that a Heusler compound in possession of a good order must be in want of a high spin polarization. In the present work, we investigated the spin polarization of the Heusler compound Co2FeAl by spin polarized tunneling through a MgO barrier into a superconducting Al-Si electrode. The measured spin polarization of P=55% is in good agreement with the previously obtained tunnel magnetoresistance values and compared to the data by other groups. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3358245] |
| Databáze: | OpenAIRE |
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