Crystal Structure of the High-Pressure Phase of Tellurium
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概要
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The pressure-induced structural change of tellurium has been studied by powder X-ray diffraction using a diamond-anvil and a cubic-anvil apparatus over the pressure range of 40–100 kbar at room temperature. The diffraction pattern for the high-pressure metallic phase at 45 kbar is interpreted as a monoclinic lattice with lattice constants <I>a</I>=3.104 Å, <I>b</I>=7.513 Å, <I>c</I>=4.760 Å, β=92.71° and <I>V</I>=111.0 Å<SUP>3</SUP>. The coordinates of the four atoms in a unit cell are given by <I>x</I><SUB>1</SUB>=0.25, <I>y</I><SUB>1</SUB>=0.23, <I>z</I><SUB>1</SUB>=0.48; <I>x</I><SUB>2</SUB>=0.48, <I>y</I><SUB>2</SUB>=0.0, <I>z</I><SUB>2</SUB>=0.02, according to the space group C<SUB>2</SUB><SUP>2</SUP>, 2a+2a. This atomic arrangement can be viewed as a layer structure. No further structural change was observed up to 100 kbar.
- 社団法人 日本物理学会の論文
社団法人 日本物理学会 | 論文
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