Idioma:

Magnetism mechanism in ZnO and ZnO doped with nonmagnetic elements X (X=Li, Mg, and Al): A first-principles study

Wang, Q. J. ; Wang, J. B. ; Zhong, X. L. ; Tan, Q. H. ; Hu, Z. ; Zhou, Y. C.

Applied physics letters, 2012-03, Vol.100 (13), p.132407-132407-5 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
Magnetism mechanism in ZnO and ZnO doped with nonmagnetic elements X (X=Li, Mg, and Al): A first-principles study
Autor: Wang, Q. J. ; Wang, J. B. ; Zhong, X. L. ; Tan, Q. H. ; Hu, Z. ; Zhou, Y. C.
É parte de: Applied physics letters, 2012-03, Vol.100 (13), p.132407-132407-5
Descrição: First-principles calculations are performed to study the magnetism mechanism in undoped ZnO and ZnO doped with nonmagnetic elements X (X=Li, Mg, and Al). In undoped ZnO, it is found that the Zn vacancy is spin-polarized with a magnetic moment of 1.54 μ B . The ferromagnetic coupling between two Zn vacancies is favorable in energy and a band coupling model is used to explain the magnetic coupling. In ZnO doped with nonmagnetic elements X, the magnetism is also attributed to the presence of Zn vacancies. The introduction of X reduces the formation energy of Zn vacancy and stabilizes it to some extent.
Editor: American Institute of Physics
Idioma: Inglês

Voltar para lista de resultados

Anterior Resultado 9 Avançar Ir para próxima página