تقرير
Negative Tunneling Magneto-Resistance in Quantum Wires with Strong Spin-Orbit Coupling
| العنوان: | Negative Tunneling Magneto-Resistance in Quantum Wires with Strong Spin-Orbit Coupling |
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| المؤلفون: | Han, Seungju, Serra, Llorens, Choi, Mahn-Soo |
| المصدر: | J. Phys.: Condens. Matt. 27 (25), 255002 (2015) |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We consider a two-dimensional magnetic tunnel junction of the FM/I/QW(FM+SO)/I/N structure, where FM, I and QW(FM+SO) stand for a ferromagnet, an insulator and a quantum wire (QW) with both magnetic ordering and Rashba spin-orbit (SOC), respectively. The tunneling magneto-resistance (TMR) exhibits strong anisotropy and switches sign as the polarization direction varies relative to the QW axis, due to interplay among the one-dimensionality, the magnetic ordering, and the strong SOC of the QW. The results may provide a possible explanation for the sign-switching anisotropic TMR recently observed in the LaAlO$_3$/SrTiO$_3$ interface. Comment: 5 pages; 3 figures; arguments refined; figures revised |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/0953-8984/27/25/255002 |
| الوصول الحر: | http://arxiv.org/abs/1409.6374Test |
| رقم الانضمام: | edsarx.1409.6374 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/0953-8984/27/25/255002 |
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