Atomic-scale magnetic properties of truly 3d-diluted ZnO (Articolo in rivista)

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Label
  • Atomic-scale magnetic properties of truly 3d-diluted ZnO (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/aelm.201400039 (literal)
Alternative label
  • R. Mantovan, H. P. Gunnlaugsson, K. Johnston, H. Masenda, T. E. Mølholt, D. Naidoo, M. Ncube, S. Shayestehaminzadeh, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, G. Langouche, S. Ólafsson, L. M. C. Pereira, U. Wahl, P. Torelli and G. Weyer (2015)
    Atomic-scale magnetic properties of truly 3d-diluted ZnO
    in Advanced Electronic Materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • R. Mantovan, H. P. Gunnlaugsson, K. Johnston, H. Masenda, T. E. Mølholt, D. Naidoo, M. Ncube, S. Shayestehaminzadeh, K. Bharuth-Ram, M. Fanciulli, H. P. Gislason, G. Langouche, S. Ólafsson, L. M. C. Pereira, U. Wahl, P. Torelli and G. Weyer (literal)
Pagina inizio
  • 1400039-1 (literal)
Pagina fine
  • 1400039-6 (literal)
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  • http://onlinelibrary.wiley.com/doi/10.1002/aelm.201400039/abstract (literal)
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  • 1 (literal)
Rivista
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  • 6 (literal)
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  • Laboratorio MDM, IMM-CNR, Agrate Brianza, MB, Italy KU Leuven, Instituut voor Kern-en Stralings Fysika, Leuven, Belgium Department of Physics and Astronomy, Aarhus University, Aarhus C, Denmark Physics Department, ISOLDE/CERN, Geneva 23, Switzerland School of Physics, University of the Witwatersrand, Johannesburg, South Africa Science Institute, University of Iceland, Reykjavík, Iceland School of Physics, Durban University of Technology, Durban, South Africa iThemba LABS, Somerset West, South Africa Dipartimento di Scienza dei Materiali, Università di Milano Bicocca, Milano, Italy Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Sacavém, Portugal Laboratorio TASC, IOM-CNR, Trieste, Italy (literal)
Titolo
  • Atomic-scale magnetic properties of truly 3d-diluted ZnO (literal)
Abstract
  • In search for dilute magnetic semiconductors, the magnetic properties at the atomic-scale of Fe atoms incorporated in ZnO, in a concentration range of more than five orders of magnitude from 1 × 10-5 to 2.2 at% have been probed using emission 57Fe Mössbauer spectroscopy on implanted 57Mn and 57Co produced at ISOLDE/CERN. In the ultra-dilute regime (10-5 at%), the system shows isolated paramagnetic Fe3+ ions with a spin-lattice type of relaxation. At higher concentrations (between 0.02 and 0.2 at%) a transition to spin-spin type of relaxation between neighboring Fe3+ is observed, without any signature of magnetic ordering up to 2.2 at%. Despite the many reports of dilute magnetism in 3d-doped ZnO, this atomic level study shows no evidence of any long-range magnetic ordering between isolated Fe atoms incorporated in the ZnO lattice. (literal)
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