Abstract
The intense nonlinear current, typically I ā Vn (nā6), where V is the applied voltage, has been observed in the wide range of temperatures (50ā300 K) for the highly oxygen reduced samples of YBa2Cu3Oy. This type of non-linearity cannot be interpreted in terms of the model of field-assisted hopping. Instead, space charge introduced into localized states may dominate nonlinear transport (space-charge-limited current). The d.c. conductivity is dominated by band conduction at high temperatures (T>100ā200 K). There is no signature of minimum metallic conductivity and is no indication of variable-range hopping (VRH) even in low temperatures.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Yu Gang and Heeger Alan J (1993) Int. J. Mod. Phys. B7: 3751.
Mott N.F and Davis E.A (1979) Electronic Processes in Non-Crystalline Materials, 2nd ed. ( Oxford. University Press).
Birgeneau R.J, Chen C.Y, Gabbe D.R, Jenssen H.P, Kastner M.A, Peters C.J, Picone P.J, Thio T, Thurston T.R, Tuller H.L, Axe J.D, Boni P, Shirane G (1987) Phys. Rev. Lett. 59: 1329.
Preyer, N.W, Birgeneau R.J, Chen C.Y, Gabbe D.R, Jessen H.P, Kastner M.A, Picone P.J, Thio T (1989) Phys. Rev. B 39: 11563.
Nkum R.K, Datars W.R (1992) Phys. Rev. B 46: 5686.
Kabasawa U, Tarutani Y, Okamoto M, Fukazawa T, Tsukamoto M, Hiratani M, Takagi K (1993) Phys. Rev. Lett. 70: 1700.
Ortuno M, Pollak M (1983) Philos. Mag. B47: L93.
Shimakawa K, Miyake K (1988) Phys. Rev. Lett. 61: 994.
Higashiyama K, Ushida T, Higa H, Hirabayashi I, Tanaka, S (1991) Jpn. J. Appl. Phys. 30: 1209.
Meyer W, Neldel H (1983) Z. Tech. Phys. 12: 588.
Elliott S.R (1990) Physics of Amorphous Materials, 2nd ed. ( Longman Scientific & Technical, New York).
Aspley N, Hughes H.P (1975) Philos. Mag. 31: 1327.
Shimakawa K, Katsuma Y (1986) J. Appl. Phys. 60: 1417.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
Ā© 1995 Springer-Verlag Tokyo
About this paper
Cite this paper
Shimakawa, K., Nishimura, T., Wahab, F.A., Kawamoto, K., Mizushima, Y., Hirabayashi, I. (1995). Nonlinear Transport in insulating YBa2Cu3Oy. In: Yamafuji, K., Morishita, T. (eds) Advances in Superconductivity VII. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68535-7_19
Download citation
DOI: https://doi.org/10.1007/978-4-431-68535-7_19
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68537-1
Online ISBN: 978-4-431-68535-7
eBook Packages: Springer Book Archive