High-pressure phase transformation of nanometric ZnSb prepared by mechanical alloying
High-pressure phase transformation of nanometric ZnSb prepared by mechanical alloying
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DOI：
10.1063/1.3158523
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发表时间：
2009-07
影响因子：
3.2
通讯作者：
D. M. Trichês;S. M. Souza;J. C. Lima;T. A. Grandi;C. Campos;A. Polian;J. Itié;F. Baudelet;J. Chervin
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文献类型：
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作者：
D. M. Trichês;S. M. Souza;J. C. Lima;T. A. Grandi;C. Campos;A. Polian;J. Itié;F. Baudelet;J. Chervin
采用机械合金化法制备了纳米正交相ZnSb，研究了其结构稳定性随压力的变化。随后的变化，拉曼和X-射线吸收光谱。在11.0和14.6 GPa之间，我们观察到从正交相到六方hP 1相的不可逆相变。类似的转变以前已经观察到在7 GPa的散装ZnSb。相变压力的差异归因于纳米结构的界面组分。
Nanometric orthorhombic ZnSb was prepared by mechanical alloying and its structural stability was studied as a function of pressure. The changes were followed by Raman and x-ray absorption spectroscopy. Between 11.0 and 14.6 GPa, we observed an irreversible phase transformation from the orthorhombic phase to a hexagonal hP1 phase. A similar transformation had been previously observed at 7 GPa for bulk ZnSb. The difference in the phase transformation pressures is attributed to an interfacial component of the nanometric structure.