The Γ5 and Γ6 free excitons have been identified in GaN from emission measurements. Another emission peak is also observed which we believe to be the longitudinal free exciton. These measurements along with electrical measurements, which show the sample to have very high peak mobility, attest to the high quality of the sample.

1.
S.
Strite
and
H.
Morkoc
,
J. Vac. Sci. Technol. B
10
,
1237
(
1992
).
2.
S.
Nakamura
,
T.
Mukai
, and
M.
Senoh
,
Appl. Phys. Lett.
64
,
1687
(
1994
).
3.
S.
Nakamura
,
M.
Senoh
,
S.
Nagahama
,
N.
Iwasa
,
T.
Tamada
,
T.
Matsushita
,
H.
Kiyoku
, and
Y.
Sugimoto
,
Jpn. J. Appl. Phys., Part 2
35
,
L74
(
1996
).
4.
J. J.
Hopfield
and
D. G.
Thomas
,
Phys. Rev.
122
,
35
(
1961
).
5.
D. C.
Reynolds
,
D. C.
Look
,
B.
Jogai
,
C. W.
Litton
,
T. C.
Collins
,
M. T.
Harris
,
M. J.
Callahan
, and
J. S.
Bailey
,
J. Appl. Phys.
86
,
1
(
1999
).
6.
J. J.
Hopfield
and
D. G.
Thomas
,
Phys. Rev.
122
,
1
(
1961
).
7.
D. C.
Look
and
R. J.
Molnar
,
Appl. Phys. Lett.
70
,
3377
(
1997
).
8.
A. W. Saxler, D. C. Look, S. Elhamri, J. Sizelove, W. C. Mitchel, M. Callahan, D. Bliss, L. Bouthillette, S.-Q. Wang, and K. Y. Lee (unpublished).
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