American Journal of Modern Physics

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Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling

Received: Jan. 19, 2014    Accepted:     Published: Feb. 20, 2014
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Abstract

Thermoelectric properties of the single molecular magnet coupled to two metal electrodes are investigated theoretically. For the infinite Coulomb interaction the singly-occupied states determine the effective transport channels. At the low temperature the thermopower and the figure of merit present the large values near bonding state level, and for the given temperature the thermopower and the figure of merit are significantly enhanced with coupling intensity decreasing. When Coulomb interaction is finite, the spectra of thermoelectric quantities split into two sets. The peaks of the thermopower and figure of merit corresponding to doubly-occupied transport channels are much larger than unity for the small coupling intensity. These results are useful for understanding and designing highly efficient thermoelectric devices based on molecular magnet.

DOI 10.11648/j.ajmp.20140302.12
Published in American Journal of Modern Physics ( Volume 3, Issue 2, March 2014 )
Page(s) 37-44
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Molecular Magnet, Thermoelectric Effect, Coulomb Blockade

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    Jian-Hua Wang, Wei-Ping Xu, Yu-Ying Zhang, Yi-Hang Nie. (2014). Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling. American Journal of Modern Physics, 3(2), 37-44. https://doi.org/10.11648/j.ajmp.20140302.12

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    ACS Style

    Jian-Hua Wang; Wei-Ping Xu; Yu-Ying Zhang; Yi-Hang Nie. Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling. Am. J. Mod. Phys. 2014, 3(2), 37-44. doi: 10.11648/j.ajmp.20140302.12

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    AMA Style

    Jian-Hua Wang, Wei-Ping Xu, Yu-Ying Zhang, Yi-Hang Nie. Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling. Am J Mod Phys. 2014;3(2):37-44. doi: 10.11648/j.ajmp.20140302.12

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  • @article{10.11648/j.ajmp.20140302.12,
      author = {Jian-Hua Wang and Wei-Ping Xu and Yu-Ying Zhang and Yi-Hang Nie},
      title = {Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling},
      journal = {American Journal of Modern Physics},
      volume = {3},
      number = {2},
      pages = {37-44},
      doi = {10.11648/j.ajmp.20140302.12},
      url = {https://doi.org/10.11648/j.ajmp.20140302.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajmp.20140302.12},
      abstract = {Thermoelectric properties of the single molecular magnet coupled to two metal electrodes are investigated theoretically. For the infinite Coulomb interaction the singly-occupied states determine the effective transport channels. At the low temperature the thermopower and the figure of merit present the large values near bonding state level, and for the given temperature the thermopower and the figure of merit are significantly enhanced with coupling intensity decreasing. When Coulomb interaction is finite, the spectra of thermoelectric quantities split into two sets. The peaks of the thermopower and figure of merit corresponding to doubly-occupied transport channels are much larger than unity for the small coupling intensity. These results are useful for understanding and designing highly efficient thermoelectric devices based on molecular magnet.},
     year = {2014}
    }
    

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    T1  - Enhancement of Thermoelectric Effects in a Single Molecular Magnet due to Resonance Tunnelling
    AU  - Jian-Hua Wang
    AU  - Wei-Ping Xu
    AU  - Yu-Ying Zhang
    AU  - Yi-Hang Nie
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    DO  - 10.11648/j.ajmp.20140302.12
    T2  - American Journal of Modern Physics
    JF  - American Journal of Modern Physics
    JO  - American Journal of Modern Physics
    SP  - 37
    EP  - 44
    PB  - Science Publishing Group
    SN  - 2326-8891
    UR  - https://doi.org/10.11648/j.ajmp.20140302.12
    AB  - Thermoelectric properties of the single molecular magnet coupled to two metal electrodes are investigated theoretically. For the infinite Coulomb interaction the singly-occupied states determine the effective transport channels. At the low temperature the thermopower and the figure of merit present the large values near bonding state level, and for the given temperature the thermopower and the figure of merit are significantly enhanced with coupling intensity decreasing. When Coulomb interaction is finite, the spectra of thermoelectric quantities split into two sets. The peaks of the thermopower and figure of merit corresponding to doubly-occupied transport channels are much larger than unity for the small coupling intensity. These results are useful for understanding and designing highly efficient thermoelectric devices based on molecular magnet.
    VL  - 3
    IS  - 2
    ER  - 

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Author Information
  • Institute of Theoretical Physics, Shanxi University, Taiyuan, China

  • Institute of Theoretical Physics, Shanxi University, Taiyuan, China

  • Department of Physics, Shanxi University, Taiyuan, China

  • Institute of Theoretical Physics, Shanxi University, Taiyuan, China

  • Section