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Abstracts
The magnetoresistance anisotropy of ultrathin La_{0.83}Sr_{0.17}Mn O_3 films deposited on NdGaO_3 substrate by metalorganic chemical vapour deposition technique was investigated. The electric-field-induced resistance change was studied up to electric fields of 10 kV/cm using ns duration electrical pulses. It was found that in ultrathin (< 10 nm) and thin (< 50 nm) films the origin of electric-field-induced resistance change is thermal. However, the films with thicknesses of about 20 nm, exhibit negative electric-field-induced resistance change, having a pure electronic nature. This effect is explained in terms of two-layer systems with imperfections located at the interface between the layers.
Discipline
- 75.30.Gw: Magnetic anisotropy
- 75.47.Gk: Colossal magnetoresistance
- 73.50.-h: Electronic transport phenomena in thin films(for electronic transport in mesoscopic systems, see 73.23.-b; see also 73.40.-c Electronic transport in interface structures; for electronic transport in nanoscale materials and structures, see 73.63.-b)
Journal
Year
Volume
Issue
Pages
203-206
Physical description
Dates
published
2005-01
received
2004-08-22
Contributors
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania
author
- Vilnius University, Dept. of General and Inorganic Chemistry, Naugarduko 24, Vilnius, Lithuania
author
- Vilnius University, Dept. of General and Inorganic Chemistry, Naugarduko 24, Vilnius, Lithuania
References
- 1. Y. Lu, X.W. Li, G.Q. Gong, G. Xiao, A. Gupta, Ph. Lecoeur, J.-Z. Sun, Y. Ywang, V.P. Dravid, Phys. Rev. B, 54, R8357, 1996
- 2. A.M. Haghiri-Gosnet, J.P. Renard, J. Phys. D, Appl. Phys., 36, R127, 2003
- 3. H.L. Ju, K.M. Krishnan, D. Lederman, J. Appl. Phys., 83, 7073, 1998
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv107n129kz