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Regensburg 2019 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 14: Poster

DS 14.61: Poster

Dienstag, 2. April 2019, 17:00–20:00, Poster E

Controlling Disorder and Disorder-Related Physical Properties in the Phase Change Material Sn1Sb2Te4 — •Nikita Polin, Stefan Maier, Brigitte Baumkötter, and Matthias Wuttig — I. Physikalisches Institut (IA), RWTH Aachen University, D-52056 Aachen, Germany

Phase-change materials (PCMs) possess physical properties suited for a wide range of applications from non-volatile data storage, data processing to thermoelectrics. The recently investigated PCM-material Sn1Sb2Te4 (SST) displays a high amount of atomic disorder attributed to intrinsic vacancies. From the fundamental research perspective SST is one of the few experimentally observed realizations of an Anderson insulator. From the applicational point of view the vacancy disorder plays an important role in shaping electronic properties. These observations make SST a promising candidate for a multilevel data storage device.

The microscopic understanding of the underlying physical phenomena is therefore of interest. The aim of this work is to get insights into interplay between disorder, transport and bonding. For this purpose optical, structure determination and electronic transport measurements shall be employed.

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