Atomic crystal structure of ordered In3Sb1Te2 ternary alloy studied by high-resolution transmission electron microscopy

Title
Atomic crystal structure of ordered In3Sb1Te2 ternary alloy studied by high-resolution transmission electron microscopy
Authors
김청수이정용김용태
Keywords
In3Sb1Te2; atomic structure; high-resolution transmission electron microscopy
Issue Date
2012-04
Publisher
Applied physics letters
Citation
VOL 100, NO 15, 151903-1-151903-3
Abstract
In summary, we have investigated to understand the atomic structure of the In3Sb1Te2 ternary alloy using HRTEM and NCEMSS. According to the different annealing times, disordered and ordered In3Sb1Te2 phases are observed. The disordered In3Sb1Te2 has the NaCl structure which consists of Sb and Te atoms randomly occupying the octahedral sites, whereas the ordered In3Sb1Te2 has Sb and Te atoms located at the center and edge of the unit cell, respectively. The 3-dimensional atomic structure model of the ordered In3Sb1Te2 phase is confirmed by experimental and simulated HRTEM images along the [011] and [012] zone axes. These results provide a fundamental understanding of the IST chalcogenide material for multilevel PRAM.
URI
http://pubs.kist.re.kr/handle/201004/42227
ISSN
00036951
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KIST Publication > Article
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