Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/21005
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Cracking of epitaxial MnAs films on GaAs(001) |
Autor: | Takagaki, Y.; Moreno, M. CSIC; Schützendübe, P.; Ramsteiner, M.; Hermann, C. | Fecha de publicación: | 25-ene-2010 | Editor: | American Institute of Physics | Citación: | Journal of Applied Physics Beta 107(2): 023510 (2010) | Resumen: | We report the characteristics of the fracture of epitaxially grown MnAs films on GaAs (001)due to the large thickness or induced by annealing. Stresses arising from the thermal expansion mismatch and the structural phase transition can no longer be accommodated when the film thickness is beyond about 0.5 (nu)m, giving rise to cracking of the films. The cracks are inclined with respect to the c axis of MnAs, suggesting their initiation by a weak plane. For films thicker than about 2 (nu)m, the fracture extends to the substrates, where the in-plane crack angle changes from about 57° to around 45° as the cracking is dictated by the cleavage plane of the substrates. Even for films much thinner than 0.5 (nu)m, annealing results in a delamination from substrate as a consequence of the large thermal expansion and, plausibly, the oxidation of MnAs. We show that Mn capping suppresses the delamination as well as the oxidation during the annealing. | Descripción: | 6 pages, 7 figures. | Versión del editor: | http://dx.doi.org/10.1063/1.3288993 | URI: | http://hdl.handle.net/10261/21005 | DOI: | 10.1063/1.3288993 | ISSN: | 0021-8979 |
Aparece en las colecciones: | (ICMM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
GetPDFServlet.pdf | 436,36 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
4
checked on 28-abr-2024
WEB OF SCIENCETM
Citations
9
checked on 29-feb-2024
Page view(s)
383
checked on 02-may-2024
Download(s)
302
checked on 02-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.