Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions
Low-voltage spin-dependent tunneling spectroscopy of an epitaxial Fe/MgO/Fe magnetic tunnel junction is measured and compared to first-principles calculation of the tunneling conductance. The measured dynamic conductance (dI/dV) in the parallel configuration shows distinct asymmetric features as a f...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal article |
| Publicado: |
2010
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| _version_ | 1826266722365079552 |
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| author | Du, G Wang, S Ma, Q Wang, Y Ward, R Zhang, X Wang, C Kohn, A Han, X |
| author_facet | Du, G Wang, S Ma, Q Wang, Y Ward, R Zhang, X Wang, C Kohn, A Han, X |
| author_sort | Du, G |
| collection | OXFORD |
| description | Low-voltage spin-dependent tunneling spectroscopy of an epitaxial Fe/MgO/Fe magnetic tunnel junction is measured and compared to first-principles calculation of the tunneling conductance. The measured dynamic conductance (dI/dV) in the parallel configuration shows distinct asymmetric features as a function of the bias voltage. The peaks are independent of barrier thickness, magnetic field, and temperature. With the help of the first-principles calculations, positive and negative bias spectra can be related to different types of Fe/MgO interfaces. © 2010 The American Physical Society. |
| first_indexed | 2024-03-06T20:43:17Z |
| format | Journal article |
| id | oxford-uuid:34f8d29c-5fc7-4b5d-bc3e-08844f8c272b |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:43:17Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:34f8d29c-5fc7-4b5d-bc3e-08844f8c272b2022-03-26T13:29:31ZSpin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:34f8d29c-5fc7-4b5d-bc3e-08844f8c272bSymplectic Elements at Oxford2010Du, GWang, SMa, QWang, YWard, RZhang, XWang, CKohn, AHan, XLow-voltage spin-dependent tunneling spectroscopy of an epitaxial Fe/MgO/Fe magnetic tunnel junction is measured and compared to first-principles calculation of the tunneling conductance. The measured dynamic conductance (dI/dV) in the parallel configuration shows distinct asymmetric features as a function of the bias voltage. The peaks are independent of barrier thickness, magnetic field, and temperature. With the help of the first-principles calculations, positive and negative bias spectra can be related to different types of Fe/MgO interfaces. © 2010 The American Physical Society. |
| spellingShingle | Du, G Wang, S Ma, Q Wang, Y Ward, R Zhang, X Wang, C Kohn, A Han, X Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title | Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title_full | Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title_fullStr | Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title_full_unstemmed | Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title_short | Spin-dependent tunneling spectroscopy for interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions |
| title_sort | spin dependent tunneling spectroscopy for interface characterization of epitaxial fe mgo fe magnetic tunnel junctions |
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