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作者:

Wang, Sai (Wang, Sai.) | Hou, Yu-Dong (Hou, Yu-Dong.) (学者:侯育冬) | Zheng, Mu-Peng (Zheng, Mu-Peng.) | Ge, Hai-Yan (Ge, Hai-Yan.) | Zhu, Man-Kang (Zhu, Man-Kang.) | Yan, Hui (Yan, Hui.)

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EI Scopus SCIE

摘要:

FeTiNbO6 ceramics have been prepared through a solid-state reaction route. The room-temperature dielectric relaxation and magnetic characteristics of FeTiNbO6 were investigated together with the crystal structure. The present ceramics were characterized by tetragonal rutile structure in space group P4(2)/mnm. An obvious dielectric relaxation with strong frequency dispersion and following the modified Debye equation was detected in low temperature range, which can be assumed to the carrier hopping process between Fe2+ and Fe3+. Temperature dependence of the dc conductivity (sigma(dc)) follows well to Mott variable range hopping (VRH) mechanism. The comparison of the dielectric behaviors between the as-sintered samples and the O-2-annealed samples shows that the low-temperature relaxation in FeTiNbO6 is indeed polarnic in nature. Moreover, the slim magnetic hysteresis loop was detected at room temperature, indicating the weak ferromagnetism in FeTiNbO6 ceramics. (C) 2013 Elsevier Ltd. All rights reserved.

关键词:

Ceramics Dielectric properties Magnetic materials Magnetic properties X-ray diffraction

作者机构:

  • [ 1 ] [Wang, Sai]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Hou, Yu-Dong]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zheng, Mu-Peng]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Ge, Hai-Yan]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Zhu, Man-Kang]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Yan, Hui]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 侯育冬

    [Hou, Yu-Dong]Beijing Univ Technol, Dept Mat Sci & Engn, Beijing 100124, Peoples R China

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来源 :

MATERIALS RESEARCH BULLETIN

ISSN: 0025-5408

年份: 2013

期: 9

卷: 48

页码: 3098-3102

5 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:263

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 13

SCOPUS被引频次: 13

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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