التفاصيل البيبلوغرافية
| العنوان: |
Bound magnetic polarons and p-d exchange interaction in ferromagnetic insulating Cu-doped ZnO. |
| المؤلفون: |
Yufeng Tian, Yongfeng Li, Mi He, Putra, Irwan Ade, Haiyang Peng, Bin Yao, Siew Ann Cheong, Wu, Tom |
| المصدر: |
Applied Physics Letters; 4/18/2011, Vol. 98 Issue 16, p162503, 3p, 1 Chart, 4 Graphs |
| مصطلحات موضوعية: |
POLARONS, FERROMAGNETISM, ATOMIC orbitals, ELECTRIC power transmission, HOPPING conduction |
| مستخلص: |
A systematic study on the magnetic and electrical transport properties of single-phase wurtzite Zn1-xCuxO is performed. Efros variable range hopping dominates the conduction, which is accompanied by a ferromagnetic order up to 700 K for x>1%. Both the first-principles calculations and Cu/Al co-doping experiments suggest that the spontaneous spin polarization originates from the p-d exchange interaction between O 2p and Cu 3d orbitals. Furthermore, our results are consistent with the scenario that the intrinsic ferromagnetism is established through indirect interactions between bound magnetic polarons mediated by magnetic impurities. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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