Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films

X-ray absorption near-edge and grazing incidence x-ray fluorescence spectroscopy are employed to investigate the electronic structure of ZnFe₂O₄ thin films. The spectroscopy techniques are used to determine the nonequilibrium cation site occupancy as a function of depth and oxygen pressure during de...

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Autores principales: Rodríguez Torres, Claudia Elena, Golmar, F., Ziese, M., Esquinazi, P., Heluani, S. P.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2011
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146212
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id I19-R120-10915-146212
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
X-ray absorption spectroscopy
Magnetotransport phenomena
Fe and its alloys
spellingShingle Física
X-ray absorption spectroscopy
Magnetotransport phenomena
Fe and its alloys
Rodríguez Torres, Claudia Elena
Golmar, F.
Ziese, M.
Esquinazi, P.
Heluani, S. P.
Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
topic_facet Física
X-ray absorption spectroscopy
Magnetotransport phenomena
Fe and its alloys
description X-ray absorption near-edge and grazing incidence x-ray fluorescence spectroscopy are employed to investigate the electronic structure of ZnFe₂O₄ thin films. The spectroscopy techniques are used to determine the nonequilibrium cation site occupancy as a function of depth and oxygen pressure during deposition and its effects on the magnetic properties. It is found that low deposition pressures below 10 ⁻³ mbar cause iron superoccupation of tetrahedral sites without Zn²⁺ inversion, resulting in an ordered magnetic phase with high room-temperature magnetic moment.
format Articulo
Preprint
author Rodríguez Torres, Claudia Elena
Golmar, F.
Ziese, M.
Esquinazi, P.
Heluani, S. P.
author_facet Rodríguez Torres, Claudia Elena
Golmar, F.
Ziese, M.
Esquinazi, P.
Heluani, S. P.
author_sort Rodríguez Torres, Claudia Elena
title Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
title_short Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
title_full Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
title_fullStr Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
title_full_unstemmed Evidence of defect-induced ferromagnetism in ZnFe₂O₄ thin films
title_sort evidence of defect-induced ferromagnetism in znfe₂o₄ thin films
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/146212
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