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Study on dielectric and magnetodielectric properties of Lu3Fe5O12 ceramics

Appl. Phys. Lett. 95, 182903 (2009); doi:10.1063/1.3259651

Published 5 November 2009

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Xiaobo Wu,1,2 Xiaofei Wang,1 Yunfei Liu,1 Wei Cai,1 Song Peng,1 Fengzhen Huang,1 Xiaomei Lu,1 Feng Yan,3 and Jinsong Zhu1
1National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
2School of Basic Medical Sciences, Nanjing Medical University, Nanjing 210029, People's Republic of China
3Department of Applied Physics, Hong Kong Polytechnic University, Kowloon, Hong Kong, People's Republic of China

Polycrystalline Lu3Fe5O12 ceramics with garnet structure were prepared by a solid-state reaction method. A dielectric relaxor behavior at low temperature was observed which may come from the dipolar effects associated with the charge carrier hopping between Fe2+ and Fe3+. It is noticeable that their magnetodielectric (MD) properties are excellent since the applied small magnetic fields can dramatically change the dielectric constants of Lu3Fe5O12 ceramics. The origin of the MD effect is discussed. ©2009 American Institute of Physics
History: Received 17 July 2009; accepted 15 October 2009; published 5 November 2009
Permalink: http://link.aip.org/link/?APPLAB/95/182903/1
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KEYWORDS and PACS

Keywords
PACS
  • 77.22.Ch
    Permittivity (dielectric function)
  • 72.20.Ee
    Mobility edges; hopping transport (semiconductors/insulators)
  • 77.80.-e
    Ferroelectricity and antiferroelectricity
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

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