Ac conductivity of strontium vanadate semiconducting glasses

被引:25
作者
Sen, S [1 ]
Ghosh, A [1 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
关键词
D O I
10.1088/0953-8984/13/9/320
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have studied the ac conductivity of several compositions of strontium vanadate semiconducting glasses in the frequency range 10 Hz-2 MHz and in the temperature range 80-450 K. We have analysed the experimental results in the framework of the quantum tunnelling and classical hopping models. We observe that tunnelling of the overlapping large polarons is the most suitable mechanism for the ac conductivity of the strontium vanadate glasses.
引用
收藏
页码:1979 / 1986
页数:8
相关论文
共 20 条
[1]   POLARONS IN CRYSTALLINE AND NON-CRYSTALLINE MATERIALS [J].
AUSTIN, IG ;
MOTT, NF .
ADVANCES IN PHYSICS, 1969, 18 (71) :41-+
[2]   HOPPING CONDUCTIVITY IN ORDERED AND DISORDERED SOLIDS .2. [J].
BOTTGER, H ;
BRYKSIN, VV .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1976, 78 (02) :415-451
[3]   IR-SPECTRAL STUDY OF VANADATE VITREOUS SYSTEMS [J].
DIMITRIEV, Y ;
DIMITROV, V ;
ARNAUDOV, M ;
TOPALOV, D .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1983, 57 (01) :147-156
[4]   ON THE THEORY OF AC CONDUCTION IN AMORPHOUS-SEMICONDUCTORS AND CHALCOGENIDE GLASSES [J].
EFROS, AL .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1981, 43 (05) :829-838
[5]   THEORY OF AC CONDUCTION IN CHALCOGENIDE GLASSES [J].
ELLIOTT, SR .
PHILOSOPHICAL MAGAZINE, 1977, 36 (06) :1291-1304
[6]   TEMPERATURE-DEPENDENCE OF AC CONDUCTIVITY OF CHALCOGENIDE GLASSES [J].
ELLIOTT, SR .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1978, 37 (05) :553-560
[7]   AC CONDUCTION IN AMORPHOUS-CHALCOGENIDE AND PNICTIDE SEMICONDUCTORS [J].
ELLIOTT, SR .
ADVANCES IN PHYSICS, 1987, 36 (02) :135-218
[8]   MEMORY SWITCHING IN BISMUTH-VANADATE GLASSES [J].
GHOSH, A .
JOURNAL OF APPLIED PHYSICS, 1988, 64 (05) :2652-2655
[9]   TRANSPORT-PROPERTIES OF SEMICONDUCTING TERNARY VANADATE GLASSES [J].
GHOSH, A .
JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (03) :1385-1389
[10]  
GHOSH A, 1990, PHYS REV B, V42, P5335