Fabrication and magnetic properties of Fe and Co co-doped ZrO2

Fabrication and magnetic properties of Fe and Co co-doped ZrO2

We investigate the effects of Fe and Co co-doping on the magnetic and electronic properties of ZrO2 ceramics prepared by a sol-gel method, and study their dependence on the annealing temperature. Dilute Fe and Co co-doping into ZrO2 exhibits ferromagnetic behavior at room temperature for annealing t...

Full description

Bibliographic Details
Main Authors: J. Okabayashi, S. Kono, Y. Yamada, K. Nomura
Format: Article
Language:English
Published: AIP Publishing LLC 2011-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.3662044
id doaj-353fcf5093ae4255945ca1d4d7da97cb
record_format Article
spelling doaj-353fcf5093ae4255945ca1d4d7da97cb2020-11-25T01:02:26ZengAIP Publishing LLCAIP Advances2158-32262011-12-0114042138042138-710.1063/1.3662044043104ADVFabrication and magnetic properties of Fe and Co co-doped ZrO2J. Okabayashi0S. Kono1Y. Yamada2K. Nomura3Research Center for Spectrochemistry, University of Tokyo, 113-0033, Tokyo, JapanDepartment of Chemistry, Tokyo University of Science, 162-8601, Tokyo, JapanDepartment of Chemistry, Tokyo University of Science, 162-8601, Tokyo, JapanDepartment of Applied Chemistry, University of Tokyo, 113-8656, Tokyo, JapanWe investigate the effects of Fe and Co co-doping on the magnetic and electronic properties of ZrO2 ceramics prepared by a sol-gel method, and study their dependence on the annealing temperature. Dilute Fe and Co co-doping into ZrO2 exhibits ferromagnetic behavior at room temperature for annealing temperatures above 900 °C, accompanying the phase transition from tetragonal to monoclinic structure in ZrO2. The electronic structures are studied by x-ray absorption spectroscopy and Mössbauer spectroscopy, which suggest that the Fe3+ and Co2+/Co3+ mixing states are dominant in Fe and Co co-doped ZrO2.http://dx.doi.org/10.1063/1.3662044
collection DOAJ
language English
format Article
sources DOAJ
author J. Okabayashi
S. Kono
Y. Yamada
K. Nomura
spellingShingle J. Okabayashi
S. Kono
Y. Yamada
K. Nomura
Fabrication and magnetic properties of Fe and Co co-doped ZrO2
AIP Advances
author_facet J. Okabayashi
S. Kono
Y. Yamada
K. Nomura
author_sort J. Okabayashi
title Fabrication and magnetic properties of Fe and Co co-doped ZrO2
title_short Fabrication and magnetic properties of Fe and Co co-doped ZrO2
title_full Fabrication and magnetic properties of Fe and Co co-doped ZrO2
title_fullStr Fabrication and magnetic properties of Fe and Co co-doped ZrO2
title_full_unstemmed Fabrication and magnetic properties of Fe and Co co-doped ZrO2
title_sort fabrication and magnetic properties of fe and co co-doped zro2
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2011-12-01
description We investigate the effects of Fe and Co co-doping on the magnetic and electronic properties of ZrO2 ceramics prepared by a sol-gel method, and study their dependence on the annealing temperature. Dilute Fe and Co co-doping into ZrO2 exhibits ferromagnetic behavior at room temperature for annealing temperatures above 900 °C, accompanying the phase transition from tetragonal to monoclinic structure in ZrO2. The electronic structures are studied by x-ray absorption spectroscopy and Mössbauer spectroscopy, which suggest that the Fe3+ and Co2+/Co3+ mixing states are dominant in Fe and Co co-doped ZrO2.
url http://dx.doi.org/10.1063/1.3662044
work_keys_str_mv AT jokabayashi fabricationandmagneticpropertiesoffeandcocodopedzro2
AT skono fabricationandmagneticpropertiesoffeandcocodopedzro2
AT yyamada fabricationandmagneticpropertiesoffeandcocodopedzro2
AT knomura fabricationandmagneticpropertiesoffeandcocodopedzro2
_version_ 1725204998741032960

Similar Items