| Crystal structure assessment of Ge-Sb-Te phase change nanowires. | |
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MedLine Citation:
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PMID: 23322217 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Further improvement of phase change memory devices based on Ge-Sb-Te alloys imposes the reduction of the active cell dimensions to the nanoscale. We investigate the atomic arrangement of Ge(1)Sb(2)Te(4) and Ge(2)Sb(2)Te(5) nanowires. We identify the stacking sequence in each crystal structure by combining the direct observation by High Angle Annular Dark Field imaging and proper simulations. We find out that Ge and Sb atoms randomly share the same lattice sites, although this configuration is considered not stable according to the existing theoretical models elaborated for the bulk material. |
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Authors:
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Enzo Rotunno; Laura Lazzarini; Massimo Longo; Vincenzo Grillo |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-16 |
Journal Detail:
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Title: Nanoscale Volume: - ISSN: 2040-3372 ISO Abbreviation: Nanoscale Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101525249 Medline TA: Nanoscale Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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IMEM-CNR, Parco Area delle Scienze 37/A, 43124 Parma, Italy. enzo.rotunno@imem.cnr.it. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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