Local Structure of Amorphous (GeTe)x(Sb2Te3) Films

被引：0
|
作者：
Marchenko, A. V. [1 ]
Terukov, E. I. [2 ,3 ]
Nasredinov, F. S. [4 ]
Petrushin, Yu. A. [1 ]
Seregin, P. P. [1 ]
机构：
[1] Herzen State Pedag Univ Russia, St Petersburg, Russia
[2] Ioffe Inst, St Petersburg, Russia
[3] St Petersburg State Electrotech Univ LETI, St Petersburg, Russia
[4] Peter Great St Petersburg Polytech Univ, St Petersburg, Russia
来源：
TECHNICAL PHYSICS | 2023年 / 68卷 / SUPPL 1期
关键词：
amorphous films; phase memory; Mossbauer spectroscopy; PHASE-CHANGE MATERIALS; TE; TRANSITION; MECHANISM;
D O I：
10.1134/S1063784223090104
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
By the method of M & ouml;ssbauer spectroscopy on the isotope Sn-119, it was shown that tetravalent germanium atoms in amorphous films (GeTe)(x)(Sb2Te3) (where x = 0.5, 1, 2, 3) form a tetrahedral system of chemical bonds, and in their local environment there are mainly tellurium atoms. In crystalline films (GeTe)(x)(Sb2Te3) is divalent hexoordinated germanium at positions 4 b of the NaCl type crystal lattice. By the method of M & ouml;ssbauer spectroscopy on Sb-121 and Te-125 atoms, it was shown that the amorphization of (GeTe)(x)(Sb2Te3) films does not change the local environment of antimony and tellurium atoms.
引用
收藏
页码：S88 / S95
页数：8
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