Advances in methods to obtain and characterise room temperature magnetic ZnO

We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 μm were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic stru...

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Detalles Bibliográficos
Autores principales: Lorite, Israel, Straube, B., Ohldag, Hendrik, Kumar, Parmod, Villafuerte, M., Esquinazi, Pablo, Rodríguez Torres, Claudia Elena, Perez de Heluani, S., Antonov, V. N., Bekenov, L. V., Ernst, Arthur, Hoffmann, Martin, Nayak, Sanjeev K., Adeagbo, Waheed A., Fischer, G., Hergert, Wolfram
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Física
X-ray absorption spectroscopy
X-ray magnetic circular dichroism spectroscopy
Photoluminescence spectroscopy
Crystallographic defects
Carbothermal process
Ferromagnetism
Electromagnetism
Magnetic hysteresis
Spintronics
Magnetic fields
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123447
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123447
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
X-ray magnetic circular dichroism spectroscopy
Photoluminescence spectroscopy
Crystallographic defects
Carbothermal process
Ferromagnetism
Electromagnetism
Magnetic hysteresis
Spintronics
Magnetic fields
spellingShingle Física
X-ray absorption spectroscopy
X-ray magnetic circular dichroism spectroscopy
Photoluminescence spectroscopy
Crystallographic defects
Carbothermal process
Ferromagnetism
Electromagnetism
Magnetic hysteresis
Spintronics
Magnetic fields
Lorite, Israel
Straube, B.
Ohldag, Hendrik
Kumar, Parmod
Villafuerte, M.
Esquinazi, Pablo
Rodríguez Torres, Claudia Elena
Perez de Heluani, S.
Antonov, V. N.
Bekenov, L. V.
Ernst, Arthur
Hoffmann, Martin
Nayak, Sanjeev K.
Adeagbo, Waheed A.
Fischer, G.
Hergert, Wolfram
Advances in methods to obtain and characterise room temperature magnetic ZnO
topic_facet Física
X-ray absorption spectroscopy
X-ray magnetic circular dichroism spectroscopy
Photoluminescence spectroscopy
Crystallographic defects
Carbothermal process
Ferromagnetism
Electromagnetism
Magnetic hysteresis
Spintronics
Magnetic fields
description We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 μm were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order.
format Articulo
Articulo
author Lorite, Israel
Straube, B.
Ohldag, Hendrik
Kumar, Parmod
Villafuerte, M.
Esquinazi, Pablo
Rodríguez Torres, Claudia Elena
Perez de Heluani, S.
Antonov, V. N.
Bekenov, L. V.
Ernst, Arthur
Hoffmann, Martin
Nayak, Sanjeev K.
Adeagbo, Waheed A.
Fischer, G.
Hergert, Wolfram
author_facet Lorite, Israel
Straube, B.
Ohldag, Hendrik
Kumar, Parmod
Villafuerte, M.
Esquinazi, Pablo
Rodríguez Torres, Claudia Elena
Perez de Heluani, S.
Antonov, V. N.
Bekenov, L. V.
Ernst, Arthur
Hoffmann, Martin
Nayak, Sanjeev K.
Adeagbo, Waheed A.
Fischer, G.
Hergert, Wolfram
author_sort Lorite, Israel
title Advances in methods to obtain and characterise room temperature magnetic ZnO
title_short Advances in methods to obtain and characterise room temperature magnetic ZnO
title_full Advances in methods to obtain and characterise room temperature magnetic ZnO
title_fullStr Advances in methods to obtain and characterise room temperature magnetic ZnO
title_full_unstemmed Advances in methods to obtain and characterise room temperature magnetic ZnO
title_sort advances in methods to obtain and characterise room temperature magnetic zno
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/123447
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