铋的蚀坑形貌随温度的变化

M.J. Joshi, B. Shah
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引用次数: 0

摘要

叙述了温度对铋单晶(111)解理面的蚀坑形貌的影响。使用了一种化学蚀刻剂,可以显示位错的紧急末端。当刻蚀温度升高到60℃时,位错蚀刻坑的形状由室温下的典型三角形转变为六边形。这种蚀坑形态的变化可以用台阶上原子的去除来解释。
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Change in the etch pit morphology of bismuth with temperature

The effect of temperature on the etch pit morphology of the (111) cleavage planes of bismuth single crystals are described. A chemical etchant which revealed the emergent ends of dislocations was used. The shape of the dislocation etch pits changes from the characteristic triangular shape at room temperature to a hexagonal shape as the etching temperature is increased to 60 °C. This change in etch pit morphology is explained in terms of the removal of atoms from steps.

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