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Structural, optical, and magnetic properties of As-doped (Zn0.93Mn0.07)O thin films.
- Source :
- Applied Physics Letters; 7/10/2006, Vol. 89 Issue 2, p022120, 3p, 4 Graphs
- Publication Year :
- 2006
-
Abstract
- The As-doped (Zn<subscript>0.93</subscript>Mn<subscript>0.07</subscript>)O thin film prepared by As<superscript>+</superscript> ion implantation showed a clear peak of (A<superscript>0</superscript>,X) having acceptor binding energy of 181 meV. The sample showed high T<subscript>C</subscript> ferromagnetism persisting up to 285 K. The contribution of magnetization from Mn ion at 280 K was determined to be 0.13μ<subscript>B</subscript>/Mn. The improved ferromagnetism is expected to be originated from hole-induced ferromagnetism and enhanced magnetic anisotropy because crystallographically improved sample showed p-type conductivity with hole concentration of 4.8×10<superscript>18</superscript> cm<superscript>-3</superscript> and hole mobility of 11.8 cm<superscript>2</superscript> V<superscript>-1</superscript> s<superscript>-1</superscript>. These results suggest that high T<subscript>C</subscript> ferromagnetism can be realized by codoping the acceptor dopant and improving the magnetic anisotropy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 89
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 21695331
- Full Text :
- https://doi.org/10.1063/1.2221901