Identification of Tellurium based Phase-Change Materials as Strong Topological Insulators

Part of the MatWerk book series (MW)


Phase-change materials (PCMs) [111, 112] are a class of materials which have become of tremendous technological importance over the last two decades. Their ability of a fast and reversible phase transition between an amorphous and crystalline phase makes them appropriate for the application in data storage. PCMs based on Ge-Sb-Te (GST) alloys are characterized by a profound change of optical reflectivity and electrical conductivity upon changing from the amorphous to the crystalline phase [113, 114]. As a consequence, these alloys are already widely used in optical data storage, such as compact discs (CDs) or rewritable digital video discs (DVDs).


Crystallization Depression Hexagonal Tungsten Recrystallization 


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Copyright information

© Springer Fachmedien Wiesbaden 2015

Authors and Affiliations

  1. 1.2nd Physical Institute BRWTH Aachen UniversityAachenGermany

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