Title
MBE growth and characterization of Sn<inf>1-x</inf>Eu<inf>x</inf>Te
Date Issued
01 January 2004
Access level
open access
Resource Type
conference paper
Author(s)
Ueta A.Y.
Rappl P.H.O.
Closs H.
Motisuke P.
Abramof E.
Dos Anjos V.R.
Chitta V.A.
Oliveira N.F.
Bauer G.
Universidade de São Paulo
Publisher(s)
Sociedade Brasileira de Fisica
Abstract
Epilayers of Sn1-xEuxTe (0 < x < 0.03) were grown by molecular beam epitaxy on freshly cleaved BaF2(111) substrates and their structural, electrical and optical properties were investigated. The thicknesses of epilayers were about 1.5 μm and deposition was carried out at growth temperatures of 300°C. The structural properties were investigated by high resolution X-ray diffraction and a sharp film degradation could be observed with increasing europium content. Electrical measurements with temperature varying from 300 to 10K indicated that the epilayers present carrier concentration ranging between 3 × 10 20 and 6 × 1020cm-3 and a low resistivity from 6.3 × 10-5 to 1.2 × 10-4 Ω.cm. From optical measurements it could be seen that spectra present a low energy edge corresponding to the beginning of intra band excitations and the high energy edge due to inter band excitations.
Start page
672
End page
674
Volume
34
Issue
2 B
Language
English
OCDE Knowledge area
Ingeniería eléctrica, Ingeniería electrónica
Ingeniería mecánica
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-4444229306
Source
Brazilian Journal of Physics
ISSN of the container
01039733
Sources of information:
Directorio de Producción Científica
Scopus