4.8 Article

Synthesis, Crystal Structure, and Magnetic Properties of Bi3Mn4O12(NO3) Oxynitrate Comprising S=3/2 Honeycomb Lattice

期刊

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 23, 页码 8313-8317

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AMER CHEMICAL SOC
DOI: 10.1021/ja901922p

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资金

  1. MEXT of Japan [17105002, 18350097, 19GS0207, 19014010, 19340098, 19052008]
  2. Grants-in-Aid for Scientific Research [19052008, 19014010, 18350097, 17105002, 19340098] Funding Source: KAKEN

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Neutron diffraction and FT-IR analysis revealed that the novel oxynitrate Bi3Mn4O12(NO3) (space group P3, a = 4.9692(1) angstrom, c = 13.1627(3) angstrom) prepared by hydrothermal synthesis is of a new structural type including flat NO3 layers alternating with blocks of two PbSb2O6-like layers. Mn4+ (S = 3/2) forms a regular honeycomb lattice, and magnetic susceptibility data indicated two-dimensional magnetism. Despite its Weiss constant of -257 K, no long-range ordering was observed down to 0.4 K because of the magnetic frustration due to the competition between the nearest and the next-nearest antiferromagnetic interactions.

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