A. V. Marchenko, E. I. Terukov, F. S. Nasredinov, P. P. Seregin, “Local structure of amorphous and crystalline Ge$_{2}$Sb$_{2}$Te$_{5}$ films”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 19,Pages 19

This article is cited in 4 papers

Local structure of amorphous and crystalline Ge$_{2}$Sb$_{2}$Te$_{5}$ films

A. V. Marchenko^a, E. I. Terukov^bc, F. S. Nasredinov^d, P. P. Seregin^a

^a Herzen State Pedagogical University of Russia, St. Petersburg
^b Ioffe Institute, St. Petersburg
^c Saint Petersburg Electrotechnical University "LETI"
^d Peter the Great St. Petersburg Polytechnic University

Abstract: The Mössbauer spectroscopy data on the $^{119}$Sn,$^{121}$Sb and $^{125}$Te isotopes have showed that the structure of germanium atoms local surrounding changes as a result of Ge$_{2}$Sb$_{2}$Te$_{5}$ amorphous films crystallization (tetrahedral symmetry changes to octahedral), while the environment of antimony and tellurium atoms does not change, and for antimony atoms it is close to that in the Sb$_{2}$Te$_{5}$ compound.

Keywords: phase-change memory, Ge$_{2}$Sb$_{2}$Te$_{5}$, Mössbauer spectroscopy.

Received: 17.03.2020
Revised: 17.03.2020
Accepted: 30.06.2020

DOI: 10.21883/PJTF.2020.19.50038.18288