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2013 | 123 | 1 | 118-120
Article title

Experimental Evidence for Jahn-Teller Transition in a Fe(II)Fe(III) Bimetallic Oxalate

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EN
Abstracts
EN
Bimetallic oxalate {[N-(n-C_4H_9)_4][FeFe(C_2O_4)_3]}_{n} has been investigated by the Mössbauer spectroscopy. The Mössbauer studies confirm that high-spin Fe(III) (S=5/2) and Fe(II) (S=2) ions are present in the compound. These spectra above 60 K consist of three quadrupole doublets, indicating that there are three different Fe sites in the material. The Mössbauer results reveal that spontaneous magnetization of Fe(II) sublattices increases more steeply than that of Fe(III) sublattices as the temperature decreases from T_{C}. Great increase of quadrupole splitting at 50 K provides compelling evidence for the predicted Jahn-Teller transition.
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author
  • Department of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094, China
  • College of Physics and Technology, Guangxi Normal University, Guilin 541004, China
author
  • College of Physics and Technology, Guangxi Normal University, Guilin 541004, China
author
  • Department of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094, China
author
  • College of Physics and Technology, Guangxi Normal University, Guilin 541004, China
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Document Type
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bwmeta1.element.bwnjournal-article-appv123n126kz
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