Youm, Min Soo Kim, Yong Tae Kim, Young Hwan Sung, Man Young 2024-01-20T23:02:47Z 2024-01-20T23:02:47Z 2021-09-03 2008-07 1862-6300 https://pubs.kist.re.kr/handle/201004/133346 The phase-change temperature and crystal structures of the delta-phase SbTe alloy for Sb contents of 64 at%, 72 at%, and 76 at% have been investigated. The delta-phase SbTe alloy has a rhombohedral crystal structure, and crystallization occurs in an extremely narrow temperature range of 140-145 degrees C compared with Sb40Te60. We have determined the relationship between the Sb content and the crystalline structure using X-ray diffraction and selected area electron diffraction. When the Sb content increases, the number of Sb layers stacked with Sb2Te3 in the unit cell increases, which results in the lowering of the activation energy for crystallization and a lower ovonic threshold voltage. (c) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. English WILEY-V C H VERLAG GMBH BEHAVIOR GE Effects of excess Sb on crystallization of delta-phase SbTe binary thin films Article 10.1002/pssa.200824037 1 PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v.205, no.7, pp.1636 - 1640 PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 205 7 1636 1640 scie scopus 000257828100020 2-s2.0-54249157000 Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics Article BEHAVIOR GE SbTe chalcogenide delta-phase crystallization