140701_LaCuSO_supporting

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Supporting information for “Effects of the Cu off-stoichiometry on transport
properties of wide gap p-type semiconductor, layered oxysulfide LaCuSO”
Yosuke Goto,1 Mai Tanaki,1 Yuki Okusa,1 Taizo Shibuya,2 Kenji Yasuoka,2 Masanori Matoba,1 and
Yoichi Kamihara1
1
Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio
University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
2
Department of Mechanical Engineering, Faculty of Science and Technology, Keio University,
Yokohama 223-8522, Japan
Table S1. Electrical transport properties of LaCuSO at 300 K.a
sample
 (cm)
S (VK-1)
nH (cm–3)
H (cm2V-1s-1)
reference
1.0  105
––
––
––
[1]
2.0  101
––
––
––
[2]
––
––
[3]
1.1 
102,b
1.3  101,c
polycrystalline bulk
LaCuSO
polycrystalline thin film
epitaxial thin film
(1.0 
89,b 50,c
1.3  105
150
––
––
[4]
1.8 
105
––
––
––
[5]
7.5  101
134
3.0  1015
9.4
[6]
6.7 
105
––
8.3  101
150
––
––
[7]
1.6  104
713
(2.0  1015)e
(2.0  10-1)e
[8]
~105
––
––
––
[9]
1.5  100
122
1.0  1019
5.0  10-1
[10]
––
––
––
[5]
8.0  103,f
LaCu1-SO
20d
101)d
(7.5  101)g
(4.7 
1013)e
(2.0 
10-1)e
present study
LaCu0.99SO
2.6  10–1
16
> 1019
< 100
present study
LaCu0.98SO
3.5  100
24
> 1019
< 100
present study
8.2  10–1
24
> 1019
< 100
present study
(5.3  100)h
3
––
––
[4]
(7.5  10-2)i
––
––
––
[11]
1.2  10-1
––
––
––
[2]
LaCu0.97SO
polycrystalline bulk
Sr-doped LaCuSO
La0.9Ca0.1Cu0.9Ni0.1S
O
La0.97Sr0.03CuSO
polycrystalline thin film
5.0  10-2
44
2.7  1020
4.7  10-1
[8]
Sr-doped LaCuSOg
polycrystalline thin film
3.8  100
40
––
––
[7]
Electrical resistivity (), Seebeck coefficient (S), Hall carrier concentration (nH), and Hall mobility
(H).
b
Sintered at 800 C for 6 h.
c
Sintered at 900 C for 6 h.
a
Sintered at 900 C for 40 h.
The nH was estimated assuming H is 0.2 cm2V-1s-1.
f
Nominal Cu deficiency is 0.5 mol%.
d
e
Nominal Cu excess is 1.5 mol%.
h
Nominal Sr content is 5 mol%.
i
Nominal Sr content is 30 mol%.
g
References
1
K. Ishikawa, S. Kinoshita, Y. Suzuki, S. Matsuura, T. Nakanishi, M. Aizawa, and Y. Suzuki, J.
Electrochem. Soc. 138, 1166 (1991).
2
Y. Furukawa, S. Ikeda, K. Kumagai, K. Mori, Y. Takano, and K. Sekizawa, Phys. Rev. B 62, 598
(2000).
3
K. Takase, M. Koyano, T. Shimizu, K. Makihara, Y. Takahashi, Y. Takano, and K. Sekizawa, Solid
State Commun. 123, 531 (2002).
4
K. Ueda, K. Takafuji, H. Hiramatsu, H. Ohta, T. Kamiya, M. Hirano, and H. Hosono, Chem. Mater.
15, 3692 (2003).
5
K. Takase, S. Kanno, R. Sasai, K. Sato, Y. Takahashi, Y. Takano, and K. Sekizawa, J. Phys. Chem.
Solids 66, 2130 (2005).
6
M. L. Liu, L. Bin Wu, F. Q. Huang, L. D. Chen, and J. a. Ibers, J. Solid State Chem. 180, 62 (2007).
7
K. Ueda, S. Inoue, S. Hirose, H. Kawazoe, and H. Hosono, Appl. Phys. Lett. 77, 2701 (2000).
8
H. Hiramatsu, M. Orita, M. Hirano, K. Ueda, and H. Hosono, J. Appl. Phys. 91, 9177 (2002).
9
H. Hiramatsu, K. Ueda, H. Ohta, M. Orita, M. Hirano, and H. Hosono, Appl. Phys. Lett. 81, 598
(2002).
10
H. Hiramatsu, K. Ueda, H. Ohta, M. Hirano, T. Kamiya, and H. Hosono, Appl. Phys. Lett. 82,
1048 (2003).
11
Y. Takano, K. Yahagi, and K. Sekizawa, Phys. B 207, 764 (1995).
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