Effect of the interlayer coupling on nonlinear I-V characteristics in amorphous W/Si nmltilayers

Y. Matsuo; Tsutomu Nojima; Y. Kuwasawa; E. Majkovs; S. Luby

doi:10.1007/BF02583681

Effect of the interlayer coupling on nonlinear I-V characteristics in amorphous W/Si nmltilayers

Y. Matsuo, Tsutomu Nojima, Y. Kuwasawa, E. Majkovs, S. Luby

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The current-voltage I-V characteristics of amorphous W monolayers and W/Si multilayers have been measured at different temperatures below T_c in the absence of magnetic field. For the W monolayer, we observed the power law V ∝ I^∝ dependence and a sudden increase of ∝ from 1 to 3 at the Kosterlitz-Thouless transition temperature. However, in the W/Si multilayer, the I-V characteristics obey the modified power law V ∝ I(I-I_c)^∝-1 with a non-vanishing critical current I_c This result is ascribed to the effect of interlayer coupling between the W layers on the thermal excitations of vortex-antivortex pairs.

Original language	English
Pages (from-to)	747-748
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 2
DOIs	https://doi.org/10.1007/BF02583681
Publication status	Published - 1996 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Effect of the interlayer coupling on nonlinear I-V characteristics in amorphous W/Si nmltilayers",

abstract = "The current-voltage I-V characteristics of amorphous W monolayers and W/Si multilayers have been measured at different temperatures below Tc in the absence of magnetic field. For the W monolayer, we observed the power law V ∝ I∝ dependence and a sudden increase of ∝ from 1 to 3 at the Kosterlitz-Thouless transition temperature. However, in the W/Si multilayer, the I-V characteristics obey the modified power law V ∝ I(I-Ic)∝-1 with a non-vanishing critical current Ic This result is ascribed to the effect of interlayer coupling between the W layers on the thermal excitations of vortex-antivortex pairs.",

author = "Y. Matsuo and Tsutomu Nojima and Y. Kuwasawa and E. Majkovs and S. Luby",

year = "1996",

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doi = "10.1007/BF02583681",

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T1 - Effect of the interlayer coupling on nonlinear I-V characteristics in amorphous W/Si nmltilayers

AU - Matsuo, Y.

AU - Nojima, Tsutomu

AU - Kuwasawa, Y.

AU - Majkovs, E.

AU - Luby, S.

PY - 1996/12/1

Y1 - 1996/12/1

N2 - The current-voltage I-V characteristics of amorphous W monolayers and W/Si multilayers have been measured at different temperatures below Tc in the absence of magnetic field. For the W monolayer, we observed the power law V ∝ I∝ dependence and a sudden increase of ∝ from 1 to 3 at the Kosterlitz-Thouless transition temperature. However, in the W/Si multilayer, the I-V characteristics obey the modified power law V ∝ I(I-Ic)∝-1 with a non-vanishing critical current Ic This result is ascribed to the effect of interlayer coupling between the W layers on the thermal excitations of vortex-antivortex pairs.

AB - The current-voltage I-V characteristics of amorphous W monolayers and W/Si multilayers have been measured at different temperatures below Tc in the absence of magnetic field. For the W monolayer, we observed the power law V ∝ I∝ dependence and a sudden increase of ∝ from 1 to 3 at the Kosterlitz-Thouless transition temperature. However, in the W/Si multilayer, the I-V characteristics obey the modified power law V ∝ I(I-Ic)∝-1 with a non-vanishing critical current Ic This result is ascribed to the effect of interlayer coupling between the W layers on the thermal excitations of vortex-antivortex pairs.

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