Structure and Phase Transition of Solid Hydrogen Sulphide
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概要
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By electron diffraction and X-ray diffraction, the following facts are found. 1) A new tetragonal structure (a=13.5Å and c=4.14Å) exists below a transformation point at about -168℃. 2) This structure changes (at -168℃) to the cubic structure which has already been known, after changing into a transient tetragonal structure (a'=1/2・a and c'=c). 3) The cubic structure shows a volume change of about 2% at a higher transformation Point at -147℃.The arrangement of sulphur atoms in the transient tetragonal form is determined from Patterson syrnthesis and trial and error method on the basis of the data given by electron diffraction. The structure is composed of double zigzag chains of sulphur atoms along the c-axis. The stable tetragonal structure of the lowest temperature phase is considered to be a super-structure of the intermediate form. The relations between these lattice transformations and changes of physical quantities are discussed.
- 社団法人日本物理学会の論文
- 1964-03-05
著者
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Kitamura Norihisa
Physics Department Tokyo Institute Of Technology
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Harada Jimpei
Physics Department Tokyo Institute Of Technology
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Harada J.
Physics Department, Tokyo Institute of Technology
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