Study of structural transition from metastable zinc-blende to rock-salt crystal in MBE MgS/ZnSe/GaAs multilayer system (Articolo in rivista)

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  • Study of structural transition from metastable zinc-blende to rock-salt crystal in MBE MgS/ZnSe/GaAs multilayer system (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2784182 (literal)
Alternative label
  • Nasi L. a; Bocchi C. a; Catellani A. a; Germini F. a; Morrod J.K. bd, Prior K.A. b; Calestani G. c (2007)
    Study of structural transition from metastable zinc-blende to rock-salt crystal in MBE MgS/ZnSe/GaAs multilayer system
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Nasi L. a; Bocchi C. a; Catellani A. a; Germini F. a; Morrod J.K. bd, Prior K.A. b; Calestani G. c (literal)
Pagina inizio
  • 111908-1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://apl.aip.org/resource/1/applab/v91/i11/p111908_s1 (literal)
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  • 91 (literal)
Rivista
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  • 3 (literal)
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  • 11 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a CNR-IMEM, Parco Area delle Scienze, 37A, I-43010 Parma, Italy; b School of Engineering and Physical Sciences, Brewster Building, Heriot-Watt University, Edinburgh EH14 4AS, UK; c Chemistry Department, Parma University, Parco Area delle Scienze 17/A, I-43010 Fontanini-Parma, Italy; d Physical Sciences, University of Cambridge, 25 Trumpington Road, Cambridge CB2 1QA, United Kingdom (literal)
Titolo
  • Study of structural transition from metastable zinc-blende to rock-salt crystal in MBE MgS/ZnSe/GaAs multilayer system (literal)
Abstract
  • The stable bulk crystal structure of magnesium sulphide is rock-salt (RS) However, the metastable zinc-blende (ZB) structure is obtained when MgS is deposited by molecular beam epitaxy (MBE) on (001) zinc-blende substrates with a relatively small misfit. As ZB-MgS is a metastable phase, the ZB crystal structure is easily lost. In the present work the ZB to RS phase transition has been analysed in MgS/ZnSe/GaAs multilayer samples grown by MBE with different MgS layer thickness. By using x-ray diffraction and transmission electron microscopy methods, a partial nucleation of MgS rock-salt is evidenced and correlated to the presence of crystallographic defects (stacking faults) at the bottom interface. The unexpected coexistence of both rocksalt and zinc-blende MgS structural phases is discussed. (literal)
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