INVESTIGADORES
RODRIGUEZ TORRES Claudia Elena
artículos
Título:
Advances in methods to obtain and characterise room temperature magnetic ZnO
Autor/es:
I. LORITE; B. STRAUBE; H. OHLDAG; P. KUMAR; M. VILLAFUERTE; P. ESQUINAZI; C. E. RODRÍGUEZ TORRES
Revista:
APPLIED PHYSICS LETTERS
Editorial:
AMER INST PHYSICS
Referencias:
Lugar: New York; Año: 2015 vol. 106
ISSN:
0003-6951
Resumen:
We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10m were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order.
