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Theoretical study of phase stability of In_xGa_(1-x)N alloys

机译:In_xGa_(1-x)N合金相稳定性的理论研究

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Molecular-mechanics based simulations are applied to investigate the structures and phase stability of InGaN alloys. The variation of bond lengths and angles with increasing In composition is found. This causes the considerable structural change and the phase separation of InGaN alloys. The interaction parameter (Ω = -1.3435x + 6.1607 (kcal/mol) ) dependent on In composition is also calculated. The phase diagram for InGaN alloys shows an asymmetry with respect to x = 0.5. The critical temperature for the phase separation is 1392 K at x = 0.44. These results are in agreement with experimental results.
机译:基于分子力学的模拟被用于研究InGaN合金的结构和相稳定性。发现结合长度和角度随In组成的增加而变化。这导致InGaN合金发生明显的结构变化和相分离。还计算了取决于In组成的相互作用参数(Ω= -1.3435x + 6.1607(kcal / mol))。 InGaN合金的相图显示相对于x = 0.5的不对称性。在x = 0.44时,相分离的临界温度为1392K。这些结果与实验结果一致。

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