Dielectric relaxation and polaronic conduction in double perovskite La2MgMnO6

被引：58
|
作者：
Lin, Y. Q. [1 ]
Chen, X. M. [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Lab Dielect Mat, Hangzhou 310027, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 14期
基金：
美国国家科学基金会;
关键词：
ceramics; dielectric relaxation; hopping conduction; lanthanum compounds; magnesium compounds; polarons; X-ray photoelectron spectra; TRANSPORT-PROPERTIES; MAGNETORESISTANCE;
D O I：
10.1063/1.3377906
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The dielectric and conductive characteristics of double perovskite La2MgMnO6 were investigated together with the mixed-valence structure. The magnetic characterization and x-ray photoemission spectroscopy analysis showed the co-presence of Mn3+ and Mn4+. A Debye type dielectric relaxation with an activation energy of 0.33 eV was observed in La2MgMnO6 ceramics. The relaxorlike dielectric characteristic was attributed to the dipolar effects coming from charge carrier hopping between Mn3+ and Mn4+. The dc conductivity of La2MgMnO6 was well fitted using adiabatic small polaron theory, and also correlated with the mixed-valence structure of Mn3+/Mn4+.
引用
收藏
页数：3
相关论文
共 50 条
  • [1] Role of Annealing Atmosphere on Structure, Dielectric and Magnetic Properties of La2CoMnO6 and La2MgMnO6
    Sayed, Farheen N.
    Achary, Srungarpu N.
    Deshpande, Sudhanshu K.
    Rajeswari, Balasubhramanian
    Kadam, Ramakant M.
    Dwebedi, Sandhya
    Nigam, Arun K.
    Tyagi, Avesh K.
    ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2014, 640 (10): : 1907 - 1921
  • [2] Study of dielectric relaxation and electrical conduction mechanism in the double perovskite La2MnRuO6
    Albedah, Mohammed A.
    INORGANIC CHEMISTRY COMMUNICATIONS, 2024, 170
  • [3] Structure and dielectric relaxation of double-perovskite La2CuTiO6 ceramics
    Yang, W. Z.
    Mao, M. M.
    Liu, X. Q.
    Chen, X. M.
    JOURNAL OF APPLIED PHYSICS, 2010, 107 (12)
  • [4] Determination of polaronic conductivity in disordered double perovskite La2CrMnO6
    Mahato, Dev K.
    Molak, Andrzej
    Szeremeta, Anna Z.
    Gruszka, Irena
    Zajdel, Pawel
    Pilch, Michal
    Koperski, Janusz
    JOURNAL OF ELECTROCERAMICS, 2019, 42 (3-4) : 136 - 146
  • [5] Determination of polaronic conductivity in disordered double perovskite La2CrMnO6
    Dev K. Mahato
    Andrzej Molak
    Anna Z. Szeremeta
    Irena Gruszka
    Pawel Zajdel
    Michal Pilch
    Janusz Koperski
    Journal of Electroceramics, 2019, 42 : 136 - 146
  • [6] Charge transport mechanism, dielectric relaxations and relaxor ferroelectric properties of Sm2MgMnO6 double perovskite
    Anirban, S. K.
    Roy, Rosni
    Mondal, Rajib
    Saha, Samarendra Nath
    Barman, Purna Chandra
    JOURNAL OF SOLID STATE CHEMISTRY, 2024, 329
  • [7] Charge transport mechanism, dielectric relaxations and relaxor ferroelectric properties of Sm2MgMnO6 double perovskite
    Anirban, Sk.
    Roy, Rosni
    Mondal, Rajib
    Saha, Samarendra Nath
    Chandra Barman, Purna
    Journal of Solid State Chemistry, 2024, 329
  • [8] Dielectric relaxation of the double perovskite oxide Ba2PrRuO6
    Chen, Jenq-Wei
    Chiou, Kuan Ru
    Hsueh, An-Chih
    Chang, Ching-Ray
    RSC ADVANCES, 2019, 9 (22) : 12319 - 12324
  • [9] Dielectric relaxation in double-perovskite Ca2GdTaO6
    Ghosh, Binita
    Dutta, Alo
    Brajesh, Kumar
    Sinha, T. P.
    INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 2015, 53 (02) : 125 - 133
  • [10] Dielectric relaxation in double perovskite oxide, Ho2CdTiO6
    Mahato, Dev K.
    Dutta, A.
    Sinha, T. P.
    BULLETIN OF MATERIALS SCIENCE, 2011, 34 (03) : 455 - 462
12345