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Title: Room-Temperature Ferromagnetism in Carbon-Doped ZnO
Authors: Pan, H. 
Yi, J.B. 
Shen, L. 
Wu, R.Q. 
Yang, J.H.
Lin, J.Y. 
Feng, Y.P. 
Ding, J. 
Van, L.H. 
Yin, J.H.
Issue Date: 17-Sep-2007
Citation: Pan, H., Yi, J.B., Shen, L., Wu, R.Q., Yang, J.H., Lin, J.Y., Feng, Y.P., Ding, J., Van, L.H., Yin, J.H. (2007-09-17). Room-Temperature Ferromagnetism in Carbon-Doped ZnO. Physical Review Letters 99 (12) : -. ScholarBank@NUS Repository.
Abstract: We report ferromagnetism in carbon-doped ZnO. Our first-principles calculations based on density functional theory predicted a magnetic moment of 2.02I B per carbon when carbon substitutes oxygen in ZnO, and an ferromagnetic coupling among magnetic moments of the carbon dopants. The theoretical prediction was confirmed experimentally. C-doped ZnO films deposited by pulsed-laser deposition showed ferromagnetism with Curie temperatures higher than 400 K. The measured magnetic moment based on the content of carbide in the films [(1.5a 3.0)I B per carbon] was in agreement with the theoretical prediction. The magnetism is due to the Zn-C system in the ZnO environment. © 2007 The American Physical Society.
Source Title: Physical Review Letters
ISSN: 00319007
DOI: 10.1103/PhysRevLett.99.127201
Appears in Collections:Staff Publications

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