| Autor: |
Chung, Sunjae, Lee, Sangyep, Yoo, Taehee, Lee, Hakjoon, Chung, J. -H., Choi, M. S., Lee, Sanghoon, Liu, X., Furdyna, J. K., Han, Jae-Ho, Lee, Hyun-Woo, Lee, Kyung-Jin |
| Rok vydání: |
2012 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/1367-2630/15/12/123025 |
| Popis: |
We report magnetoresistance data in magnetic semiconductor multilayers, which exhibit a clear step-wise behavior as a function of external field. We attribute this highly non-trivial step-wise behavior to next-nearest-neighbor interlayer exchange coupling. Our microscopic calculation suggests that this next-nearest-neighbor coupling can be as large as 24% of the nearest-neighbor coupling. It is argued that such unusually long-range interaction is made possible by the quasi-one-dimensional nature of the system and by the long Fermi wavelength characteristic of magnetic semiconductors. |
| Databáze: |
arXiv |
| Externí odkaz: |
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