Investigation of a.c. conductivity measurements in a-Se80Te20 and a-Se80Te10M10 (M = Cd, in, Sb) alloys using correlated barrier hopping model

다국어 초록 (Multilingual Abstract)

The a.c. conductivity of a-Se80Te20 and a-Se80Te10M10 (M ¼ Cd, In, Sb) alloys has been investigated as a function of temperature in the range from 280 to 330 K and frequency in the range from 102 to 104 Hz.
The experimental results indicate that a.c. conductivity sac is proportional to us where s < 1 and decreases with increasing temperature. The results obtained are discussed in terms of the correlated barrier hopping (CBH) model. An agreement between experimental and theoretical results suggests that the a.c. conductivity behavior of a-Se80Te20 and a-Se80Te10M10 (M ¼ Cd, In, Sb) system can be successfully explained by CBH model. The contribution of single polaron and bipolaron hopping to a.c. conductivity in present alloys is also studied.

다국어 초록 (Multilingual Abstract)

The a.c. conductivity of a-Se80Te20 and a-Se80Te10M10 (M ¼ Cd, In, Sb) alloys has been investigated as a function of temperature in the range from 280 to 330 K and frequency in the range from 102 to 104 Hz.
The experimental results indicate that a.c. conductivity sac is proportional to us where s < 1 and decreases with increasing temperature. The results obtained are discussed in terms of the correlated barrier hopping (CBH) model. An agreement between experimental and theoretical results suggests that the a.c. conductivity behavior of a-Se80Te20 and a-Se80Te10M10 (M ¼ Cd, In, Sb) system can be successfully explained by CBH model. The contribution of single polaron and bipolaron hopping to a.c. conductivity in present alloys is also studied.

참고문헌 (Reference)

1 S.R. Elliott, 36 : 1291-, 1977

2 R.T. Sanderson, 105 : 2259-, 1983

3 A.F. Maged, 518 : 2628-, 2010

4 M.A. Majeed Khan, 45 : 727-, 2010

5 N.A. Hegab, 477 : 925-, 2009

6 N. Chandel, 13 : 257-, 2011

7 S.R. Elliott, 36 : 135-, 1987

8 S.R. Elliott, 37 : 553-, 1978

9 M. Singh, 180 : 251-, 1995

10 H.S. Metwally, 292 : 213-, 2000

11 N. Mehta, 37 : 123-, 2007

12 G. Singh, 353 : 1322-, 2007

13 F.A. Abdel Wahab, 355 : 2239-, 2009

14 A.E. Bekeheet, 83 : 391-, 2009

15 G. Lucovsky, 5 : 113-, 1967

16 G. Lucovsky, 4 : 505-, 1969

17 J. Schotmiller, 4 : 80-, 1970

18 G.C. Das, 7 : 251-, 1972

19 M.K. El-Mously, 27 : 265-, 1978

20 K. Shimakawa, 46 : 123-, 1982

21 M.F. Kotkata, 54 : 303-, 1983

22 H.E. Atyia, 81 : 590-, 2007

23 N.A. Hegab, 3 : 71-, 2007

24 M.A. Abkovitz, "The Physics of Se and Te" Springer 178-, 1979