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Fe charge state adjustment in ZnO upon ion implantation
- Source :
- Journal of physics / Condensed matter 24(48), 485801-(2012). doi:10.1088/0953-8984/24/48/485801, Mantovan, R, Gunnlaugsson, H P, Naidoo, D, Ólafsson, S, Johnston, K, Masenda, H, Mølholt, T E, Bharuth-Ram, K, Fanciulli, M, Gislason, H P, Langouche, G, Sielemann, R, Weyer, G & The ISOLDE Collaboration 2012, ' Fe charge state adjustment in ZnO upon ion implantation ', Journal of Physics: Condensed Matter, vol. 24, no. 48, pp. 5801 . https://doi.org/10.1088/0953-8984/24/48/485801
- Publication Year :
- 2012
- Publisher :
- IOP Publ., 2012.
-
Abstract
- The influence of the ion implantation process on the charge state of dilute (57)Fe impurities implanted as radioactive (57)Mn in ZnO is investigated by (57)Fe emission Mössbauer spectroscopy. One sample is additionally implanted with stable (23)Na impurities. Both Fe(2+) and Fe(3+) charge states are observed, and the Fe(3+)/Fe(2+) ratio is found to increase with the fluence of both (57)Mn/(57)Fe and (23)Na ions, demonstrating that the build-up of Fe(3+) is not related to the chemical nature of the implanted ions. The results are interpreted in terms of radiation damage induced changes of the Fermi level, and illustrate that the Fe(3+)/Fe(2+) ratio can be adjusted by ion implantation. The spin-lattice relaxation time for Fe(3+) in ZnO is found to be independent of the implantation fluence, and is evidently an intrinsic property of the system.
- Subjects :
- 010302 applied physics
Materials science
Fermi level
Analytical chemistry
Spin–lattice relaxation
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
Isotopes of sodium
01 natural sciences
Fluence
Charged particle
Ion
symbols.namesake
Ion implantation
Impurity
0103 physical sciences
symbols
General Materials Science
ddc:530
0210 nano-technology
Fe impurities
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Journal of physics / Condensed matter 24(48), 485801-(2012). doi:10.1088/0953-8984/24/48/485801, Mantovan, R, Gunnlaugsson, H P, Naidoo, D, Ólafsson, S, Johnston, K, Masenda, H, Mølholt, T E, Bharuth-Ram, K, Fanciulli, M, Gislason, H P, Langouche, G, Sielemann, R, Weyer, G & The ISOLDE Collaboration 2012, ' Fe charge state adjustment in ZnO upon ion implantation ', Journal of Physics: Condensed Matter, vol. 24, no. 48, pp. 5801 . https://doi.org/10.1088/0953-8984/24/48/485801
- Accession number :
- edsair.doi.dedup.....f94320c13e0ac2d51651661695445adb