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Staff Profile

Associate Professor Deena Naidoo

Position ASSOCIATE PROFESSOR
QualificationsMSc, BScHons, PhD
Phone 0117176866
Email Deena.Naidoo@wits.ac.za
Organisational Unit School of Physics

My primary research interests are:

  • Radioactive Mossbauer Spectroscopy: 57Fe/119Sn Mossbauer investigations on a suite of oxides, semiconductors and III-V nitrides after implantation of   57Mn* /119In*. Mossbauer Spectroscopy is being adopted as an investigative tool to examine the defect and dopant diffusion in semiconductors such as Si, SiGe; magnetism in ZnO, MgO and Al2O3; annealing of implantation induced lattice damage in diamond, SiC, GaP, GaAs, InAs, GaN, InN and AlN.
  • Transmission Mossbauer spectroscopy (Room Temperature and in-situ): 57Fe Mossbauer studies of perovskite systems for example doped BiFeO3 materials as a function of Fe concentration and temperature.
  • Room Temperature Conversion Electron Mossbauer Spectroscopy (CEMS):  Fe enriched films, single and polycrystalline materials.

My secondary research field is Physics Education which focuses on students learning experiences, their understanding of concepts and problem-solving skills.

Member of the:

  • Materials Physics Research Institute (MPRI), School of Physics, University of the Witwatersrand.
  • New Ultra-hard Materials Group, DST/NRF Centre of Excellence (CoE) in Strong Materials.
  • South Africa-CERN Program (ISOLDE Group).
  • ISOLDE Collaboration (IS501) at CERN.
  • International Commission on Physics Education (ICPE) Commission-14 of the International Union for Pure and Applied Physics (IUPAP).

  • Phys1001/6 Course co-ordinator: Auxiliary Level (~350-600 students).
  • Projects are offered on Mossbauer spectroscopy and complimentary techniques at 3rd, Honours, Masters and PhD levels.

Publications
H. P. Gunnlaugsson, T. E. Molholt, R. Mantovan, H. Masenda, D. Naidoo, W. B. Dlamini, R. Sielemann, K. Bharuth-Ram, G. Weyer, K. Johnston, G. Langouche S. Olafsson, H. P. Gislason, Y. Kobayashi, Y. Yoshida, M. Fanciulli and the ISOLDE Collaboration
Paramagnetism in Mn/Fe implanted ZnO
ISBN: N/A, Journal: Applied Physics Letters 97 142501
- Year: 2010
H. Masenda, D. Naidoo, K. Bharuth-Ram, H. P. Gunnlaugsson, G. Weyer, W. B. Dlamini, R. Mantovan, R. Sielemann, M. Fanciulli, T. E. Molholt, S. Olafsson, G. Langouche, K. Johnston and the ISOLDE Collaboration
Mossbauer study of 57Fe in GaAs and GaP following 57Mn implantation
ISBN: N/A, Journal: Hyperfine Interactions 198:15-22
- Year: 2010
H. P. Gunnlaugsson, R. Sielemann, T. E. Molholt, W. B. Dlamini, K. Johnston, R. Mantovan, H. Masenda, D. Naidoo, W. N. Sibanda, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, G. Langouche, S. Olafsson, G. Weyer and the ISOLDE Collaboration
Magnetism in Iron Implanted Oxides: A Status Report
ISBN: N/A, Journal: Hyperfine Interaction 197:43-52
- Year: 2010
G. Weyer, H. P. Gunnlaugsson, R. Mantovan, M. Fanciulli, D. Naidoo, K. Bharuth-Ram and T. Agne
Defect-related local magnetism at dilute Fe atoms in ion-implanted ZnO
ISBN: N/A, Journal: Journal of Applied Physics 102, 113915
- Year: 2007
D. Naidoo, H. P. Gunnlaugsson, K. Bharuth-Ram, V. V. Naicker, G. Weyer, R. Sielemann, R. Mantovan, M. Fanciulli, The ISOLDE Collaboration
57Fe Mossbauer investigations in p-type Silicon Germanium single crystals
ISBN: N/A, Journal: Hyperfine Interactions 188:11-17
- Year: 2009
K. Bharuth-Ram, V. V. Naicker, D. Naidoo, H. P. Gunnlaugsson, R. Mantovan, G. Weyer, M. Dietrich, J. E. Butler, ISOLDE Collaboration
Mossbauer study of 57Fe in CVD diamond following 57Mn implantation
ISBN: N/A, Journal: Hyperfine Interactions 179:17-22
- Year: 2008

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