Three hydrogen-terminated diamonds with different surface roughness and morphologies have been investigated by conductivity and Hall experiments in the temperature regime 0.34–350 K. The sheet hole densities are weakly temperature dependent above a critical temperature Tc (20 K⩽Tc⩽70 K), below Tc carriers freeze out. The mobilities of holes show a minimum at Tc increasing towards higher and even stronger towards lower temperatures significantly up to 400 cm2/V s. A transport model is introduced where holes propagate in the valence band where a disorder-induced tail of localized states is present.

1.
M. I.
Landstrass
and
K. V.
Ravi
,
Appl. Phys. Lett.
55
,
975
(
1989
).
Google Scholar
 
2.
T.
Maki
,
S.
Shikama
,
M.
Komori
,
Y.
Sakaguchi
,
K.
Sakuta
, and
T.
Kobayashi
,
Jpn. J. Appl. Phys., Part 1
31
,
1446
(
1992
).
Google Scholar
 
3.
K.
Hayashi
,
S.
Yamanaka
,
H.
Okushi
, and
K.
Kajimura
,
Appl. Phys. Lett.
68
,
376
(
1996
).
Google Scholar
 
4.
H. J.
Looi
,
R. B.
Jackman
, and
J. S.
Foord
,
Appl. Phys. Lett.
72
,
353
(
1998
).
Google Scholar
 
5.
R. I. S.
Gi
,
K.
Tashiro
,
S.
Tanaka
,
T.
Fujisawa
,
H.
Kimura
,
T.
Kurosu
, and
M.
Iida
,
Jpn. J. Appl. Phys., Part 1
38
,
3492
(
1999
).
Google Scholar
 
6.
H.
Kawarada
,
Surf. Sci. Rep.
26
,
207
(
1996
).
Google Scholar
 
7.
R. I. S.
Gi
,
T.
Mizumasa
,
Y.
Akiba
,
H.
Hirose
,
T.
Kurosu
, and
M.
Iida
,
Jpn. J. Appl. Phys., Part 1
34
,
5550
(
1995
).
Google Scholar
 
8.
J.
Shirafuji
and
T.
Sugino
,
Diamond Relat. Mater.
5
,
706
(
1996
).
Google Scholar
 
9.
F.
Maier
,
M.
Riedel
,
B.
Mantel
,
J.
Ristein
, and
L.
Ley
,
Phys. Rev. Lett.
85
,
3472
(
2000
).
Google Scholar
 
10.
H.
Kiyota
,
E.
Matsushima
,
K.
Sato
,
H.
Okushi
,
T.
Ando
,
M.
Kamo
,
Y.
Sato
, and
M.
Iida
,
Appl. Phys. Lett.
67
,
3596
(
1995
).
Google Scholar
 
11.
S.
Albin
and
L.
Watkins
,
Appl. Phys. Lett.
56
,
1454
(
1990
).
Google Scholar
 
12.
K.
Hayashi
,
S.
Yamanaka
,
H.
Watanabe
,
T.
Sekiguchi
,
H.
Okushi
, and
K.
Kajimura
,
Appl. Surf. Sci.
125
,
120
(
1998
).
Google Scholar
 
13.
C.
Sauerer
,
F.
Ertl
,
C. E.
Nebel
,
M.
Stutzmann
,
P.
Bergonzo
,
O. A.
Williams
, and
R. A.
Jackman
,
Phys. Status Solidi A
2
,
241
(
2001
).
Google Scholar
 
14.
H. H. Wieder, in Laboratory Notes on Electrical and Galvanomagnetic Measurements, Material Science Monographs, 2 (Elsevier, Amsterdam, 1979), Chap. 2, p. 39.
15.
C. E. Nebel, F. Ertl, C. Sauerer, M. Stutzmann, C. F. O. Graeff, P. Bergonzo, O. A. Williams, and R. B. Jackman, Diamond Relat. Mater.
16.
T. Tiedje, in Semiconductors and Semimetals, Vol. 21, Hydrogenated Amorphous Silicon, edited by J. I. Pankove, Part C (Academic, Orlando, 1984), p. 207.
17.
J. P. F. Sellschop, in The Properties of Natural and Synthetic Diamond, edited by J. E. Field (Academic, London, 1992), p. 81.
18.
M. Tachiki, T. Fukuda, H. Seo, K. Sugata, T. Banno, H. Umezawa, and H. Kawarada, Mater. Res. Soc. Symp. Proc. 675 (to be published).
This content is only available via PDF.
© 2001 American Institute of Physics.
2001
American Institute of Physics
You do not currently have access to this content.