Crystal growth and characterization of the new spin dimer system Ba3Cr2O8

Crystals of the spin dimer system Ba3Cr2O8 have been grown for the first time by the traveling solvent floating zone method. Obtained crystals were characterized by X-ray diffraction (XRD) at room temperature and refined in the space group . The magnetic susceptibility shows a broad maximum around 1...

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Bibliographic Details
Published in:Journal of crystal growth 2008-02, Vol.310 (4), p.870-873
Main Authors: ACZEL, A. A, DABKOWSKA, H. A, PROVENCHER, P. R, LUKE, G. M
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from melts
zone melting and refining
Inorganic compounds
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:Crystals of the spin dimer system Ba3Cr2O8 have been grown for the first time by the traveling solvent floating zone method. Obtained crystals were characterized by X-ray diffraction (XRD) at room temperature and refined in the space group . The magnetic susceptibility shows a broad maximum around 16K and below this drops off sharply, providing evidence for the spin gap which was estimated to be 15.6(3)K. From the susceptibility and single crystal XRD measurements, it has been confirmed that the Cr ions are found in the rare +5 oxidation state in this material.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2007.12.030