We report the observation of a spatially-ordered bidimensional array of self-assembled InP quantum dots grown on slightly In-rich InGaP layers. The alignment of InP dots is observed along [100] and [010] directions. This effect is enhanced when 2° off vicinal substrates are used; it is also strongly dependent on growth temperature. Our results suggest that the density and size of CuPt-type atomically ordered regions as well as compositional modulation of InGaP layers play an important role on the spatial alignment of InP/InGaP quantum dots.

1.
Q.
Xie
,
A.
Madhukar
,
P.
Chen
, and
N. P.
Kobayashi
,
Phys. Rev. Lett.
75
,
2542
(
1995
).
2.
J.
Tersoff
,
C.
Teichert
, and
M. G.
Lagally
,
Phys. Rev. Lett.
76
,
1675
(
1996
).
3.
C.-S.
Lee
,
B.
Kahng
, and
A.-L.
Barabási
,
Appl. Phys. Lett.
78
,
984
(
2001
).
4.
G.
Springholz
,
V.
Holy
,
M.
Pinczolits
, and
G.
Bauer
,
Science
282
,
734
(
1998
).
5.
V.
Holý
,
G.
Springholz
,
M.
Pinczolits
, and
G.
Bauer
,
Phys. Rev. Lett.
83
,
356
(
1999
).
6.
C. A. C.
Mendonça
,
M. A.
Cotta
,
E. A.
Meneses
, and
M. M. G.
Carvalho
,
Phys. Rev. B
57
,
12501
(
1996
).
7.
C.-S.
Lee
and
A.-L.
Barabási
,
Appl. Phys. Lett.
73
,
2651
(
1998
).
8.
F.
Hatami
,
U.
Müller
,
H.
Kissel
,
K.
Braune
,
R.-P.
Blum
,
S.
Rogaschewski
,
H.
Niehus
,
H.
Kirmse
,
W.
Neumann
,
M.
Schmidbauer
,
R.
Köhler
, and
W. T.
Masselink
,
J. Cryst. Growth
216
,
26
(
2000
).
9.
Z.
Jin
,
B.
Wang
,
Y.
Peng
,
F.
Zhao
,
W.
Chen
,
S.
Liu
, and
C.
Gao
,
Surf. Sci.
423
,
L211
(
1999
).
10.
K.
Häusler
,
K.
Eberl
,
F.
Noll
, and
A.
Trampert
,
Phys. Rev. B
54
,
4913
(
1996
).
11.
A. E.
Romanov
,
P. M.
Petroff
, and
J. S.
Speck
,
Appl. Phys. Lett.
74
,
2280
(
1999
).
12.
A.
Zunger
,
MRS Bull.
22
,
20
(
1997
).
13.
M.
Zorn
,
P.
Kurpas
,
A. I.
Shkrebtii
,
B.
Junno
,
A.
Bhattacharya
,
K.
Knorr
,
M.
Weyers
,
L.
Samuelson
,
J. T.
Zettler
, and
W.
Richter
,
Phys. Rev. B
60
,
8185
(
1999
).
14.
P.
Ernst
,
C.
Geng
,
F.
Scholz
,
H.
Schweizer
,
Y.
Zhang
, and
A.
Mascarenhas
,
Appl. Phys. Lett.
67
,
2347
(
1995
).
15.
M. C.
DeLong
,
D. J.
Mowbray
,
R. A.
Hogg
,
M. S.
Skolnick
,
J. E.
Williams
,
K.
Meehan
,
S. R.
Kurtz
,
J. M.
Olson
,
R. P.
Schneider
,
M. C.
Wu
, and
M.
Hopkinson
,
Appl. Phys. Lett.
66
,
3185
(
1995
).
16.
O.
Ueda
,
S.
Isozumi
, and
S.
Komiya
,
Jpn. J. Appl. Phys.
23
,
L241
(
1984
).
17.
T.
Okada
,
G. C.
Weatherly
, and
D. W.
McComb
,
J. Appl. Phys.
81
,
2185
(
1997
).
18.
F.
Peiró
,
A.
Cornet
,
J. R.
Morante
,
A.
Georgakilas
,
C.
Wood
, and
A.
Christou
,
Appl. Phys. Lett.
66
,
2391
(
1995
).
19.
B. J.
Spencer
,
P. W.
Voorhees
, and
J.
Tersoff
,
Appl. Phys. Lett.
76
,
3022
(
2000
).
20.
K.
Ozasa
,
M.
Yuri
,
S.
Tanaka
, and
H.
Matsunami
,
J. Appl. Phys.
68
,
107
(
1990
).
This content is only available via PDF.
You do not currently have access to this content.