南华大学学报：自然科学版2012，Vol.26Issue(2)：61-65,5.
GaAs纳米晶体压致相变的尺寸模型
The Size Model of Pressure-induced Phase Transition in GaAs Nanocrystals
摘要
Abstract
Based on the intrinsic relationship between phase transition pressure and cohe- sive energy, a simple quantitative thermodynamic model is proposed to describe the size- dependence of phase transition pressure in nanocrystals. In terms of this model, the size effect of pressure-induced phase transition in GaAs nanocrystals is investigated. It is re- vealed that the stability of nanostructures drops leads to phase transition pressure reduces with size decreasing. As the size further decreases, the phase transition pressure decreases sharply and exhibits stronger size effect. The predicted results are consistent with MD simu- lations for GaAs nanocrystals reasonably.关键词
砷化镓/纳米晶体/压致相变/尺寸模型Key words
GaAs/Nanocrystals/pressure-induced phase transition/size-model分类
数理科学引用本文复制引用
吕云宾,廖树帜,谢斌,陈佳..GaAs纳米晶体压致相变的尺寸模型[J].南华大学学报：自然科学版,2012,26(2):61-65,5.基金项目
湖南省科技厅科研基金资助项目 （）
