Electric field effects on the conductivity of highly textured Bi2Sr2CaCu2Oy superconductors

T. S. Orlova; A. N. Kudymov; B. I. Smirnov; D. J. Miller; M. T. Lanagan; K. C. Goretta

doi:10.1016/0921-4534(95)00506-4

Electric field effects on the conductivity of highly textured Bi₂Sr₂CaCu₂O_y superconductors

T. S. Orlova, A. N. Kudymov, B. I. Smirnov, D. J. Miller, M. T. Lanagan, K. C. Goretta

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

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Abstract

An experimental study has been made of the electric field effect in an electrode/insulator/superconductor system on the critical current (I_c) and the current/voltage characteristics at 77 K of highly textured Bi₂Sr₂CaCu₂O_y (2212) superconductors. Large polycrystalline 2212 bars were prepared by directional isothermal growth from a melt. It was established that in strong electric fields (to 120 MV/m) I_c in the bars increases as much as 20% and resistance decreases for current I > I_c. The field effect is reversible and is observed in various field orientations with respect to the growth direction of the bars. Peculiarities of the field effect are observed in the presence of hysteresis of the current/voltage characteristics.

Original language	English (US)
Pages (from-to)	194-198
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	253
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(95)00506-4
State	Published - Oct 20 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Electric field effects on the conductivity of highly textured Bi2Sr2CaCu2Oy superconductors",

abstract = "An experimental study has been made of the electric field effect in an electrode/insulator/superconductor system on the critical current (Ic) and the current/voltage characteristics at 77 K of highly textured Bi2Sr2CaCu2Oy (2212) superconductors. Large polycrystalline 2212 bars were prepared by directional isothermal growth from a melt. It was established that in strong electric fields (to 120 MV/m) Ic in the bars increases as much as 20% and resistance decreases for current I > Ic. The field effect is reversible and is observed in various field orientations with respect to the growth direction of the bars. Peculiarities of the field effect are observed in the presence of hysteresis of the current/voltage characteristics.",

author = "Orlova, {T. S.} and Kudymov, {A. N.} and Smirnov, {B. I.} and Miller, {D. J.} and Lanagan, {M. T.} and Goretta, {K. C.}",

note = "Funding Information: Reversible changes in the current/voltage, l/V, characteristics induced by an external electrostatic field have been observed previously in YBa2Cu30 x and (Bi,Pb)2Sr2Ca2Cu3Oy high-temperature superconductors \[1-4\]. The field was found to affect the critical current, I c, and the resistance of samples for currents I > Ic. The field effect depended strongly * Corresponding author. Work at Ioffe was supported by the Russian Academy of Sciences; work at Argonne was supported by the US Department of Energy (DOE), Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, and Basic Energy Sciences (Materials Sciences), under Contract W-31 - 109-Eng-38.",

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doi = "10.1016/0921-4534(95)00506-4",

language = "English (US)",

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T1 - Electric field effects on the conductivity of highly textured Bi2Sr2CaCu2Oy superconductors

AU - Orlova, T. S.

AU - Kudymov, A. N.

AU - Smirnov, B. I.

AU - Miller, D. J.

AU - Lanagan, M. T.

AU - Goretta, K. C.

N1 - Funding Information: Reversible changes in the current/voltage, l/V, characteristics induced by an external electrostatic field have been observed previously in YBa2Cu30 x and (Bi,Pb)2Sr2Ca2Cu3Oy high-temperature superconductors \[1-4\]. The field was found to affect the critical current, I c, and the resistance of samples for currents I > Ic. The field effect depended strongly * Corresponding author. Work at Ioffe was supported by the Russian Academy of Sciences; work at Argonne was supported by the US Department of Energy (DOE), Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, and Basic Energy Sciences (Materials Sciences), under Contract W-31 - 109-Eng-38.

PY - 1995/10/20

Y1 - 1995/10/20

N2 - An experimental study has been made of the electric field effect in an electrode/insulator/superconductor system on the critical current (Ic) and the current/voltage characteristics at 77 K of highly textured Bi2Sr2CaCu2Oy (2212) superconductors. Large polycrystalline 2212 bars were prepared by directional isothermal growth from a melt. It was established that in strong electric fields (to 120 MV/m) Ic in the bars increases as much as 20% and resistance decreases for current I > Ic. The field effect is reversible and is observed in various field orientations with respect to the growth direction of the bars. Peculiarities of the field effect are observed in the presence of hysteresis of the current/voltage characteristics.

AB - An experimental study has been made of the electric field effect in an electrode/insulator/superconductor system on the critical current (Ic) and the current/voltage characteristics at 77 K of highly textured Bi2Sr2CaCu2Oy (2212) superconductors. Large polycrystalline 2212 bars were prepared by directional isothermal growth from a melt. It was established that in strong electric fields (to 120 MV/m) Ic in the bars increases as much as 20% and resistance decreases for current I > Ic. The field effect is reversible and is observed in various field orientations with respect to the growth direction of the bars. Peculiarities of the field effect are observed in the presence of hysteresis of the current/voltage characteristics.

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Electric field effects on the conductivity of highly textured Bi₂Sr₂CaCu₂O_y superconductors

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