Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties

Bai, Yijia; Han, Lin; Liu, Xiaojuan; Deng, Xiaolong; Wu, Xiaojie; Yao, Chuangang; Liang, Qingshuang; Meng, Junling; Meng, Jian

doi:10.1016/J.JSSC.2014.05.013

Title: Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties

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Abstract

The B-site ordered double perovskite oxides LaPbMSbO{sub 6} (M=Co, Ni) have been synthesized via the modified Sol–Gel precursor two-step route. Rietveld refinements reveal strong abnormal structural distortion and BO{sub 6} octahedral deformation appearing along the ab plane. Owing to the cooperative Jahn–Teller effect of Co{sup 2+} and Pb{sup 2+} ions, the Co-related compound exhibits almost complete Co{sup 2+}–Sb{sup 5+} order. For magnetic properties, spin-canted antiferromagnetic state with high extent of magnetic frustration is confirmed. The Ni-related compound presents heavier magnetic frustration for introducing tiny disorder on site occupation accompanied with valence state and further enhancing the complexity of magnetic competition. Dielectric measurements present a considerable temperature dependent dielectric relaxation with great dc-like loss feature in the LaPbCoSbO{sub 6}. For LaPbNiSbO{sub 6}, however, the permittivity with low dielectric loss is shown to be insensitive to either temperature or frequency. The corresponding electronic active energy manifests that the weakly bounded 3d-electron is prone to hop in a more distorted Co–Sb sublattice. - Graphical abstract: XRD Rietveld refinement result of LaPbCoSbO{sub 6} presented a large BO{sub 6} octahedral distortion along the ab plane. Based upon the variations from Co–O–Sb bond angles, a fierce competition from many extended magnetic coupling routes (M–O–O–M) would inducemore »« less

Authors:

Bai, Yijia ^[1]; Han, Lin ^[1]; Liu, Xiaojuan ^[1]; Deng, Xiaolong ^[1]; Wu, Xiaojie ^[1]; Yao, Chuangang; Liang, Qingshuang; Meng, Junling ^[1]; Meng, Jian ^[1]

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022 (China)

Publication Date:: Mon Sep 15 00:00:00 EDT 2014

OSTI Identifier:: 22443386

Resource Type:: Journal Article

Journal Name:: Journal of Solid State Chemistry

Additional Journal Information:: Journal Volume: 217; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANTIFERROMAGNETISM; ANTIMONY IONS; BOND ANGLE; COBALT IONS; DEFORMATION; DIELECTRIC MATERIALS; ELECTRONIC STRUCTURE; GELS; LEAD IONS; MAGNETIC PROPERTIES; OXIDES; PERMITTIVITY; PEROVSKITE; SOLS; SPIN; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION

Citation Formats


                    Bai, Yijia, Chemical Engineering College, Inner Mongolia University of Technology, 49 Aimin Street, Hohhot 010051, Han, Lin, University of Chinese Academy of Sciences, Beijing 10049, Liu, Xiaojuan, Deng, Xiaolong, University of Chinese Academy of Sciences, Beijing 10049, Wu, Xiaojie, Yao, Chuangang, Liang, Qingshuang, Meng, Junling, University of Chinese Academy of Sciences, Beijing 10049, and Meng, Jian. Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties.  United States: N. p., 2014. 
        Web.  doi:10.1016/J.JSSC.2014.05.013.

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                    Bai, Yijia, Chemical Engineering College, Inner Mongolia University of Technology, 49 Aimin Street, Hohhot 010051, Han, Lin, University of Chinese Academy of Sciences, Beijing 10049, Liu, Xiaojuan, Deng, Xiaolong, University of Chinese Academy of Sciences, Beijing 10049, Wu, Xiaojie, Yao, Chuangang, Liang, Qingshuang, Meng, Junling, University of Chinese Academy of Sciences, Beijing 10049, & Meng, Jian. Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties.  United States.  https://doi.org/10.1016/J.JSSC.2014.05.013

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                    Bai, Yijia, Chemical Engineering College, Inner Mongolia University of Technology, 49 Aimin Street, Hohhot 010051, Han, Lin, University of Chinese Academy of Sciences, Beijing 10049, Liu, Xiaojuan, Deng, Xiaolong, University of Chinese Academy of Sciences, Beijing 10049, Wu, Xiaojie, Yao, Chuangang, Liang, Qingshuang, Meng, Junling, University of Chinese Academy of Sciences, Beijing 10049, and Meng, Jian. 2014.  
        "Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties".  United States.  https://doi.org/10.1016/J.JSSC.2014.05.013.

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@article{osti_22443386,

  title        = {Perovskite LaPbMSbO{sub 6} (M=Co, Ni): Structural distortion, magnetic and dielectric properties},

  author       = {Bai, Yijia and Chemical Engineering College, Inner Mongolia University of Technology, 49 Aimin Street, Hohhot 010051 and Han, Lin and University of Chinese Academy of Sciences, Beijing 10049 and Liu, Xiaojuan and Deng, Xiaolong and University of Chinese Academy of Sciences, Beijing 10049 and Wu, Xiaojie and Yao, Chuangang and Liang, Qingshuang and Meng, Junling and University of Chinese Academy of Sciences, Beijing 10049 and Meng, Jian},

  abstractNote = {The B-site ordered double perovskite oxides LaPbMSbO{sub 6} (M=Co, Ni) have been synthesized via the modified Sol–Gel precursor two-step route. Rietveld refinements reveal strong abnormal structural distortion and BO{sub 6} octahedral deformation appearing along the ab plane. Owing to the cooperative Jahn–Teller effect of Co{sup 2+} and Pb{sup 2+} ions, the Co-related compound exhibits almost complete Co{sup 2+}–Sb{sup 5+} order. For magnetic properties, spin-canted antiferromagnetic state with high extent of magnetic frustration is confirmed. The Ni-related compound presents heavier magnetic frustration for introducing tiny disorder on site occupation accompanied with valence state and further enhancing the complexity of magnetic competition. Dielectric measurements present a considerable temperature dependent dielectric relaxation with great dc-like loss feature in the LaPbCoSbO{sub 6}. For LaPbNiSbO{sub 6}, however, the permittivity with low dielectric loss is shown to be insensitive to either temperature or frequency. The corresponding electronic active energy manifests that the weakly bounded 3d-electron is prone to hop in a more distorted Co–Sb sublattice. - Graphical abstract: XRD Rietveld refinement result of LaPbCoSbO{sub 6} presented a large BO{sub 6} octahedral distortion along the ab plane. Based upon the variations from Co–O–Sb bond angles, a fierce competition from many extended magnetic coupling routes (M–O–O–M) would induce a considerably large magnetic frustration and electron hopping restriction. - Highlights: • Highly ordered LaPbMSbO{sub 6} (M=Co, Ni) were synthesized. • Abnormal structural distortion appeared in the ab plane. • Strong magnetic frustration was confirmed via M{sup 2+}–O–O–M{sup 2+} route. • Dielectric measurements presented a large difference between Co and Ni samples. • 3d-electronic structure determines lattice distortion and physical properties.},

  doi          = {10.1016/J.JSSC.2014.05.013},

  url          = {https://www.osti.gov/biblio/22443386},
  journal      = {Journal of Solid State Chemistry},

  issn         = {0022-4596},

  number       = ,

  volume       = 217,

  place        = {United States},

  year         = {Mon Sep 15 00:00:00 EDT 2014},

  month        = {Mon Sep 15 00:00:00 EDT 2014}

}

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