Journal Article

Continuous and Localized Mn Implantation of ZnO

Hernández-Vélez, M, González-Díaz, G, Sanz, R, Jensen, J, Vázquez, M, Martínez, O

2009

Overview

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.

• Publisher: New York : Springer-Verlag,Springer New York,Springer Nature B.V,Springer,SpringerOpen
• Subject: Aluminum oxide / Chemistry and Materials Science / Condensed matter physics / Crystal defects / Defects and diffusion / Defekter och diffusion / Elementarpartikelfysik / Elementary particle physics / Ferromagnetism / Fysik / Implantation / Ion implantation / Ion physics / Jonfysik / Kondenserade materiens fysik / Magnetic properties / Magnetic semiconductors / Materials Science / Molecular Medicine / Nano Express / Nanochemistry / Nanoporous anodic alumina / Nanoscale Science and Technology / Nanotechnology / Nanotechnology and Microengineering / NATURAL SCIENCES / NATURVETENSKAP / Physics / Raman spectroscopy / Room temperature / Zinc oxide / ZnO