Synthesis, crystal structure, and properties of KSbO 3-type Bi 3Mn 1.9Te 1.1O 11

Man Rong Li, Maria Retuerto, Yong Bok Go, Thomas J. Emge, Mark Croft, Alex Ignatov, Kandalam V. Ramanujachary, Walid Dachraoui, Joke Hadermann, Mei Bo Tang, Jing Tai Zhao, Martha Greenblatt

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Abstract

Single crystals of Bi 3Mn 1.9Te 1.1O 11 were prepared from NaClKCl flux. This compound adopts KSbO 3-type crystal structure as evidenced by electron and single crystal X-ray diffraction analysis. The three-dimensional channel structure is formed by corner-sharing octahedral (Mn 0.63Te 0.37) 2O 10 dimers and two identical (Bi1) 4(Bi2) 2 interpenetrating lattices. The intra-dimer Mn/Te-Mn/Te distances in Bi 3Mn 1.9Te 1.1O 11 are short and are consistent with weak metal-metal interactions. The mixed oxidation state of manganese and the edge-sharing octahedral features are confirmed by X-ray near edge absorption spectroscopy measurements, which indicate Bi 3(Mn III 1.1Mn IV 0.8)Te VI 1.1O 11 with 57.7% Mn 3 and 42.3% Mn 4. The partial substitution of Te for Mn perturbs long-range magnetic interactions, thereby destroying the ferromagnetic ordering found in Bi 3Mn 3O 11 (T C=150 K).

Original languageEnglish (US)
Pages (from-to)543-549
Number of pages7
JournalJournal of Solid State Chemistry
Volume197
DOIs
StatePublished - Jan 2013

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Ceramics and Composites
  • Materials Chemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

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