Phase slips in submicrometer YBaCu3O7 -δ bridges

P Mikhenko; X Deng; S Gildert; Mark Colclough; Robert Smith; Christopher Muirhead; Philip Prewett; Jason Teng

doi:10.1103/PhysRevB.72.174506

Phase slips in submicrometer YBaCu3O7 -δ bridges

P Mikhenko, X Deng, S Gildert, Mark Colclough, Robert Smith, Christopher Muirhead, Philip Prewett, Jason Teng

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

27 Citations (Scopus)

Abstract

We have measured the resistance vs temperature, R(T), and current vs voltage, I(V), for a series of submicrometer YBa2Cu3O7-delta tracks. We find that superconductivity is suppressed when the room temperature resistance is greater than the superconducting resistance quantum, R-q=h/4e(2). In addition, we observe regular steps in the I(V) characteristics of some bridges, which we associate with phase slip centers. For one bridge, with resistance just below the resistance quantum, R-q, we find a gradual entry into the superconducting state which is well fit by theoretical predictions for thermally activated phase slips in a superconducting wire.

Original language	English
Article number	174506
Number of pages	5
Journal	Physical Review B
Volume	72
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.72.174506
Publication status	Published - 1 Nov 2005

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Portfolio Award : Superconducting thin films - their science and applications (Linked to RRAH09726)
Jones, I.
Engineering & Physical Science Research Council
1/04/03 → 31/03/09
Project: Research Councils

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title = "Phase slips in submicrometer YBaCu3O7 -δ bridges",

abstract = "We have measured the resistance vs temperature, R(T), and current vs voltage, I(V), for a series of submicrometer YBa2Cu3O7-delta tracks. We find that superconductivity is suppressed when the room temperature resistance is greater than the superconducting resistance quantum, R-q=h/4e(2). In addition, we observe regular steps in the I(V) characteristics of some bridges, which we associate with phase slip centers. For one bridge, with resistance just below the resistance quantum, R-q, we find a gradual entry into the superconducting state which is well fit by theoretical predictions for thermally activated phase slips in a superconducting wire.",

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AU - Mikhenko, P

AU - Deng, X

AU - Gildert, S

AU - Colclough, Mark

AU - Smith, Robert

AU - Muirhead, Christopher

AU - Prewett, Philip

AU - Teng, Jason

PY - 2005/11/1

Y1 - 2005/11/1

N2 - We have measured the resistance vs temperature, R(T), and current vs voltage, I(V), for a series of submicrometer YBa2Cu3O7-delta tracks. We find that superconductivity is suppressed when the room temperature resistance is greater than the superconducting resistance quantum, R-q=h/4e(2). In addition, we observe regular steps in the I(V) characteristics of some bridges, which we associate with phase slip centers. For one bridge, with resistance just below the resistance quantum, R-q, we find a gradual entry into the superconducting state which is well fit by theoretical predictions for thermally activated phase slips in a superconducting wire.

AB - We have measured the resistance vs temperature, R(T), and current vs voltage, I(V), for a series of submicrometer YBa2Cu3O7-delta tracks. We find that superconductivity is suppressed when the room temperature resistance is greater than the superconducting resistance quantum, R-q=h/4e(2). In addition, we observe regular steps in the I(V) characteristics of some bridges, which we associate with phase slip centers. For one bridge, with resistance just below the resistance quantum, R-q, we find a gradual entry into the superconducting state which is well fit by theoretical predictions for thermally activated phase slips in a superconducting wire.

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JO - Physical Review B

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Phase slips in submicrometer YBaCu3O7 -δ bridges

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Portfolio Award : Superconducting thin films - their science and applications (Linked to RRAH09726)

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