In a recent experimental study, Siegrist et al. [Nature Materials 10, 202–208 (2011)] investigated the metal-insulator transition (MIT) induced by annealing in GeSb₂Te₄. The authors concluded that this phase-change material exhibits a discontinuous MIT with finite minimum metallic conductivity. The striking contrast between their work and reports on many other disordered substances from the last decades motivates the present in-depth study of the influence of the MIT criterion used on the character of the MIT derived.

中文翻译：

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无序固体中的金属-绝缘体转变：理论偏见如何影响其表征对实验数据分析的严格审查

在最近的一项实验研究中，Siegrist等人。[自然材料10，202-208（2011）]研究了GeSb诱导退火金属-绝缘体转变（MIT）₂碲₄。作者得出的结论是，这种相变材料表现出具有有限的最小金属电导率的不连续MIT。他们的工作与最近几十年来对许多其他无序物质的报道之间的鲜明对比激发了对MIT准则对所衍生的MIT特征的影响的深入研究的动机。