Calculation of Short-Range-Order Diffuse Intensity for a Two Dimensional Square Lattice within Cluster Variation Method

• Uzawa Hideyuki

  Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University

• Mohri Tetsuo

  Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University

抄録

The Cluster Variation Method (CVM) within the square approximation is employed to calculate Short-Range-Order diffuse intensity spectrum for a binary alloy in a two dimensional square lattice. The peak intensity at 1:1 stoichiometric composition is attained at (k_x,k_y)=(0.5,0.5) in the k-space. The instability temperature determined by the calculation of the Short-Range-Order diffuse intensity coincides with the phase boundary, indicating that the transition is of second-order. The integrated intensity in a Brillouin zone is also calculated to examine the level of the approximation

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 42 (3), 422-424, 2001

  公益社団法人 日本金属学会

キーワード

• cluster variation method
• short-range-order diffuse intensity
• square lattice
• square approximation
• ordering wave
• concentration wave
• instability temperature.

詳細情報

• CRID: 1390001204245805696
• NII論文ID: 130004451449
• NII論文ID: 10006547455
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.42.422
• COI: 1:CAS:528:DC%2BD3MXjtlSjtrc%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 5727864
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5727864
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/42/3/42_3_422/_pdf
• 本文言語コード: en
• データソース種別:
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