Structure and basic magnetic properties of the honeycomb lattice compounds Na{sub 2}Co{sub 2}TeO{sub 6} and Na{sub 3}Co{sub 2}SbO{sub 6}

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2007.01.002· OSTI ID:21015747

Huang, Q ^[1]; Morosan, E ^[2]; Zandbergen, H W ^[3]; Greenbaum, N I ^[2]; McQueen, T ^[2]; Cava, R J ^[2]

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1. NIST Center for Neutron Research, NIST, Gaithersburg, MD 20899 (United States)
2. Department of Chemistry, Princeton University, Princeton NJ 08544 (United States)
3. National Centre for HREM, Department of Nanoscience, Delft Institute of Technology, Al Delft (Netherlands)

The synthesis, structure, and basic magnetic properties of Na{sub 2}Co{sub 2}TeO{sub 6} and Na{sub 3}Co{sub 2}SbO{sub 6} are reported. The crystal structures were determined by neutron powder diffraction. Na{sub 2}Co{sub 2}TeO{sub 6} has a two-layer hexagonal structure (space group P6{sub 3}22) while Na{sub 3}Co{sub 2}SbO{sub 6} has a single-layer monoclinic structure (space group C2/m). The Co, Te, and Sb ions are in octahedral coordination, and the edge sharing octahedra form planes interleaved by sodium ions. Both compounds have full ordering of the Co{sup 2+} and Te{sup 6+}/Sb{sup 5+} ions in the ab plane such that the Co{sup 2+} ions form a honeycomb array. The stacking of the honeycomb arrays differ in the two compounds. Both Na{sub 2}Co{sub 2}TeO{sub 6} and Na{sub 3}Co{sub 2}SbO{sub 6} display magnetic ordering at low temperatures, with what appears to be a spin-flop transition found in Na{sub 3}Co{sub 2}SbO{sub 6}. - Graphical abstract: The layer of edge-shared MO{sub 6} octahedra, showing the honeycomb Co array.

• OSTI ID: 21015747
• Journal Information: Journal of Solid State Chemistry, Vol. 180, Issue 3; Other Information: DOI: 10.1016/j.jssc.2007.01.002; PII: S0022-4596(07)00017-5; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIMONY COMPOUNDS
ANTIMONY IONS
COBALT COMPOUNDS
COBALT IONS
HEXAGONAL LATTICES
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
MONOCLINIC LATTICES
NEUTRON DIFFRACTION
OXIDES
SODIUM COMPOUNDS
SODIUM IONS
SPACE GROUPS
SYNTHESIS
TELLURIUM COMPOUNDS
TELLURIUM IONS