A New Analysis Technique of Anharmonic Thermal Vibration by Using Nuclear Density Distribution of the Maximum Entropy Method.

• KUMAZAWA Shintaro

  日本原子力研究所・先端基礎研究センター

Bibliographic Information

Other Title

• 非調和熱振動の新しい解析法に関する研究
• ヒチョウワ ネツ シンドウ ノ アタラシイ カイセキホウ ニ カンスル ケンキ

Abstract

The Maximum Entropy Method (MEM) can provide a high-resolution nuclear density distribution purely from experimental neutron diffraction data. The distribution expresses thermal smearing, which is caused by all kinds of thermal-vibration modes both harmonic and anharmonic. If the effective one-particle potential (OPP) is assumed to describe thermal smearing of nuclei, the potential parameters can be determined by least squares refinement of the nuclear density distribution. It is found that this technique gives sufficiently small correlation between potential parameters than the conventional structure analysis technique and the potential parameters can be precisely determined even in a powder diffraction case.

Journal

• Nihon Kessho Gakkaishi

  Nihon Kessho Gakkaishi 40 (4), 244-253, 1998

  The Crystallographic Society of Japan

Details

• CRID: 1390282679063294592
• NII Article ID: 10002590769
• NII Book ID: AN00188364
• DOI: 10.5940/jcrsj.40.244
• ISSN: 18845576
• ISSN: 03694585
• NDL BIB ID: 4553531
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4553531
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed