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Correlation effects among thermal displacements of atoms in VSe by diffuse neutron scattering measurement

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Abstract

Neutron diffraction measurements have been performed on powder VSe at 294 K. The diffuse scattering theory including correlation effects among thermal displacements of atoms is applied to background function in the Rietveld analysis. The oscillatory scheme of the diffuse scattering intensity from hexagonal VSe is explained by the correlation effects among far-neighboring Se–Se atoms. The values of the correlation effects depend on the inter-atomic distance and not on the crystal structure. The relation between correlation effects and force constants is discussed.

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Acknowledgements

The authors wish to express their thanks to Ibaraki University, Hitachi Ltd., and Ibaraki Prefecture for financial support in respect of their Collaborative Project. This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C), 21540314, 2009.

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Authors and Affiliations

  1. Institute of Applied Beam Science, Ibaraki University, Mito, 310-8512, Japan

    T. Sakuma,  Xianglian & S. Siagian

  2. College of Physics and Electronics Information, Inner Mongolia University for the Nationalities, Tongliao, 028043, China

    Xianglian

  3. Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, 40132, Indonesia

    K. Basar

  4. Institute of Applied Beam Science, Ibaraki University, Hitachi, 316-8511, Japan

    H. Takahashi

  5. Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, 319-1195, Japan

    N. Igawa

  6. Department of Physics, Faculty of Engineering, Setsunan University, Neyagawa, 572-8508, Japan

    O. Kamishima

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  1. T. Sakuma
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  2. Xianglian
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  3. S. Siagian
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  4. K. Basar
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  5. H. Takahashi
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  7. O. Kamishima
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Correspondence to T. Sakuma.

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Sakuma, T., Xianglian, Siagian, S. et al. Correlation effects among thermal displacements of atoms in VSe by diffuse neutron scattering measurement. J Therm Anal Calorim 99, 173–176 (2010). https://doi.org/10.1007/s10973-009-0501-x

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  • DOI: https://doi.org/10.1007/s10973-009-0501-x

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