The vibrational modes in Hg1−xCdxTe epitaxial films and HgTe/CdTe superlattices have been investigated by means of far‐infrared (FIR) transmittance spectra at temperatures from 4.2 to 300 K. The observations were put forward in the spectral range from 20 to 350 cm−1, emphasizing the wave‐number region at the low‐frequency side of the reststrahlen absorption band. A series of single‐phonon and two‐phonon modes as well as impurities‐ and defects‐induced vibrational modes are observed. FIR transmission seems to be a good probe for characterization of the perfection of Hg1−xCdxTe films.

Topics
Phonons, Semiconductors, Superlattices, Epitaxy, Absorption band
1.
S. P.
Kozyrev,
L. K.
Vodopyanov
, and
R.
Triboulet,
Solid State Commun.
45
,
383
(
1983
).
Google Scholar
 
2.
P. M.
Amirtharaj,
K. K.
Tiong,
P.
Parayanthal
, and
F. H.
Pollak,
J. Vac. Sci. Technol. A
3
,
226
(
1985
).
Google Scholar
 
3.
A.
Lusson
and
J.
Wagner,
Phys. Rev. B
38
,
10064
(
1988
).
Google Scholar
 
4.
J.
Baars
and
F.
Sorger,
Solid State Commun.
10
,
875
(
1972
).
Google Scholar
 
5.
J. H.
Chu
and
S. C.
Shen,
Semicond. Sci. Technol.
8
,
S86
(
1993
).
Google Scholar
 
6.
D.
Rajavel
and
S.
Perkowitz,
J. Electron. Mater.
17
,
25
(
1987
).
Google Scholar
 
7.
S. Farjami
Shayesteh,
T.
Dumelow,
T. J.
Parker,
T. I.
Benushis,
S. N.
Ershov
, and
M. I.
Vasilevskiy,
Int. J. Infrared Millim. Waves
16
,
763
(
1995
).
Google Scholar
 
8.
S. C.
Shen
and
J. H.
Chu,
Solid State Commun.
48
,
1017
(
1983
).
Google Scholar
 
9.
D. L. Carter, M. A. Kinch, and D. D. Buss, in The Physics of Semimetals and Narrow Gap Semiconductors, edited by D. L. Carter and R. T. Bate (Pergamon, New York, 1971), p. 273.
10.
Yu. I.
Mazur,
S. I.
Kriven,
G. G.
Tarasov
, and
N. V.
Shevchenko,
Semicond. Sci. Technol.
8
,
1187
(
1993
).
Google Scholar
 
11.
R. Dorhaus and G. Nimtz, Solid State Physics (Springer Tracts in Modern Phys., Heidelberg, 1976), Vol. 78.
12.
Biao Li, X. Q. Chen, J. H. Chu et al., Chin. J. Infrared Millim. Waves 14, 216 (1995).
13.
L. S.
Kim,
S.
Perkowitz,
O. K.
Wu
, and
J. N.
Schulman,
Semicond. Sci. Technol.
5
,
S107
(
1990
).
Google Scholar
 
14.
S.
Perkowitz,
D.
Rajavel,
I. K.
Sou,
J.
Reno,
J. P.
Faurie,
C.
Jones,
T.
Casselman,
K. A.
Harris,
J. W.
Cook
, and
J. F.
Schetzina,
Appl. Phys. Lett.
49
,
806
(
1986
).
Google Scholar
 
15.
D. N.
Talwar
and
M.
Vandevyver,
J. Appl. Phys.
56
,
1601
(
1984
).
Google Scholar
 
16.
Biao Li, J. H. Chu, J. Q. Zhu, X. Q. Chen, J. Y. Cao, and D. Y. Tang, J. Crystal Growth (to be published).
17.
Properties of Narrow Gap Cadmium-based Compounds, edited by P. Capper, EMIS Datareview Series No. 10 (INSPEC, London, 1994).
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