Nano Archive

Continuous and Localized Mn Implantation of ZnO

Sanz, R. and Jensen, J. and González-Díaz, G. and Martínez, O. and Vázquez, M. and Hernández-Vélez, M. (2009) Continuous and Localized Mn Implantation of ZnO. Nanoscale Research Letters, 4 (8). pp. 878-887. ISSN 1931-7573 (Print) 1556-276X (Online)

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We present results derived from continuous and localized 35 keV 55Mn+ ion implantations into ZnO. Localized implantations were carried out by using self-ordered alumina membranes as masks leading to ordered arrays of implanted volumes on the substrate surfaces. Defects and vacancies in the small implantation volumes of ZnO were generated due to the implantation processes besides the creation of new phases. Rapid thermal annealing was applied in the case of continuous implantation. The samples were characterized by HRSEM, GIXRD, Raman spectroscopy and RBS/C. Magnetic characterization of the samples pointed out appreciable differences among the samples obtained by the different implantation methods. This fact was mainly attributed to the different volume/surface ratios present in the implanted zones as well as to the increase of Mn atom concentrations along the grain frontiers in the nanostructured surfaces. The samples also showed a ferromagnetic transition phase at temperature value higher than room temperature

Item Type:Article
Uncontrolled Keywords:Ion implantation - Nanoporous anodic alumina - Magnetic semiconductors - Magnetic properties - ZnO
Subjects:Physical Science > Nanoelectronics
Physical Science > Nanomagnetics
ID Code:6977
Deposited By:Lesley Tobin
Deposited On:26 Aug 2009 17:39
Last Modified:26 Aug 2009 17:39

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