Please use this identifier to cite or link to this item: http://hdl.handle.net/10321/2969
Title: Emission Mössbauer spectroscopy study of fluence dependence of paramagnetic relaxation in Mn/Feimplanted ZnO
Authors: Masenda, Hilary 
Geburt, S. 
Bharuth-Ram, Krish 
Naidoo, D. 
Gunnlaugsson, H.P. 
Johnston, K. 
Mantovan, R. 
Mølholt, Torben Esmann 
Ncube, M. 
Shayestehaminzadeh, S. 
Gíslason, H.P. 
Langouche, G. 
Ólafsson, S. 
Ronning, C. 
Keywords: ZnO;Fe implantation;Emission Mössbauer spectroscopy;Spin relaxation;Paramagnetism
Issue Date: 22-Feb-2016
Publisher: Springer International Publishing Switzerland
Source: Masenda, H. et al. 2016. Emission Mössbauer spectroscopy study of fluence dependence of paramagnetic relaxation in Mn/Feimplanted ZnO. Hypefine Interact. 237: 40. https://doi.org/10.1007/s10751-016-1293-6
Abstract: Emission Mössbauer Spectroscopy following the implantation of radioactive precursor isotope 57Mn+ (T 1/2= 1.5 min) into ZnO single crystals at ISOLDE/CERN shows that a large fraction of 57Fe atoms produced in the 57Mn beta decay is created as paramagnetic Fe3+ with relatively long spin-lattice relaxation times. Here we report on ZnO pre-implanted with 56Fe to fluences of 2×1013, 5×10 13 and 8 × 1013 ions/cm2 in order to investigate the dependence of the paramagnetic relaxation rate of Fe3+ on fluence. The spectra are dominated by magnetic features displaying paramagnetic relaxation effects. The extracted spin-lattice relaxation rates show a slight increase with increasing ion fluence at corresponding temperatures and the area fraction of Fe3+ at room temperature reaches a maximum contribution of 80(3)% in the studied fluence range.
URI: http://hdl.handle.net/10321/2969
ISSN: 0304-3843 (print)
1572-9540 (online)
Appears in Collections:Research Publications (Applied Sciences)

Show full item record

Page view(s)

43
checked on Dec 16, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.