Sep 12 – 17, 2010
CERN
Europe/Zurich timezone
The conference is now over. Thanks to all for their participation. <p> The talks from the various sessions are all online.

Paramagnetism in Mn/Fe implanted ZnO

Not scheduled
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

CH - 1211 Geneva 23 Switzerland
72
Show room on map
POSTER Magnetism and Magnetic materials - Bulk and thin layers

Speaker

Haraldur Gunnlaugsson (Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark)

Description

Prompted by the generally poor understanding [1,2] of the nature of magnetic phenomena in 3d-metal doped ZnO, we have undertaken on-line 57Fe Mössbauer spectroscopy at the ISOLDE facility at CERN on ZnO single crystal in an external magnetic field of 0.6 T, following implantation of radioactive 57Mn+ (T½ = 1.5 min.) ions at room temperature. The Mössbauer spectra of the dilute Fe impurities are dominated by sextets whose angular dependence rules out an ordered magnetic state, but are well accounted for on the basis of Fe3+ paramagnetic centres with long relaxation times.
Please specify whether you would prefer an oral or poster contribution. oral
Are you a student, a delegate from developing countries or a participant with physical needs and would like to apply for a sponsored accomodation. Please answer with yes or no. no

Primary author

Haraldur Gunnlaugsson (Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark)

Co-authors

G. Langouche (Instituut voor Kern-en Stralings fysika, University of Leuven, B-3001 Leuven, Belgium) G. Weyer (Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Århus C, Denmark) H. Masenda (School of Physics, University of the Witwatersrand, WITS 2050, South Africa) H. P. Gíslason (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) K. Bharuth-Ram (School of Physics, University of KwaZulu-Natal, Durban 4001, South Africa) K. Johnston (PH Dept, ISOLDE/CERN, 1211 Geneva 23, Switzerland) M. Fanciulli (Dipartimento di Scienza dei Materiali, Università di Milano Bicocca, Milano, Italy) R. Mantovan (Laboratorio MDM, IMM-CNR, Via Olivetti 2, 20041 Agrate Brianza (MB), Italy) R. Sielemann (Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany) S. Ólafsson (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) T. E. Mølholt (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) W. B. Dlamini (School of Physics, University of KwaZulu-Natal, Durban 4001, South Africa) Y. Kobayashi (The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan)

Presentation materials

There are no materials yet.