Nature of phase transitions of superconducting wire networks in a magnetic field

X. S. Ling; H. J. Lezec; M. J. Higgins; J. S. Tsai; J. Fujita; H. Numata; Y. Nakamura; Y. Ochiai; Chao Tang; P. M. Chaikin; S. Bhattacharya

doi:10.1103/PhysRevLett.76.2989

Nature of phase transitions of superconducting wire networks in a magnetic field

X. S. Ling, H. J. Lezec, M. J. Higgins, J. S. Tsai, J. Fujita, H. Numata, Y. Nakamura, Y. Ochiai, Chao Tang, P. M. Chaikin, S. Bhattacharya

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

Abstract

We study I-V characteristics of periodic square Nb wire networks as a function of temperature in a transverse magnetic field, with a focus on three fillings 2/5, 1/2, and 0.618 that represent very different levels of incommensurability. For all three fillings, a scaling behavior of I-V characteristics is found, suggesting a finite temperature continuous superconducting phase transition. The low-temperature I-V characteristics are found to have an exponential form, indicative of the domain-wall excitations.

Original language	English (US)
Pages (from-to)	2989-2992
Number of pages	4
Journal	Physical Review Letters
Volume	76
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.76.2989
State	Published - Apr 15 1996

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Physics and Astronomy(all)

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10.1103/PhysRevLett.76.2989

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abstract = "We study I-V characteristics of periodic square Nb wire networks as a function of temperature in a transverse magnetic field, with a focus on three fillings 2/5, 1/2, and 0.618 that represent very different levels of incommensurability. For all three fillings, a scaling behavior of I-V characteristics is found, suggesting a finite temperature continuous superconducting phase transition. The low-temperature I-V characteristics are found to have an exponential form, indicative of the domain-wall excitations.",

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T1 - Nature of phase transitions of superconducting wire networks in a magnetic field

AU - Ling, X. S.

AU - Lezec, H. J.

AU - Higgins, M. J.

AU - Tsai, J. S.

AU - Fujita, J.

AU - Numata, H.

AU - Nakamura, Y.

AU - Ochiai, Y.

AU - Tang, Chao

AU - Chaikin, P. M.

AU - Bhattacharya, S.

PY - 1996/4/15

Y1 - 1996/4/15

N2 - We study I-V characteristics of periodic square Nb wire networks as a function of temperature in a transverse magnetic field, with a focus on three fillings 2/5, 1/2, and 0.618 that represent very different levels of incommensurability. For all three fillings, a scaling behavior of I-V characteristics is found, suggesting a finite temperature continuous superconducting phase transition. The low-temperature I-V characteristics are found to have an exponential form, indicative of the domain-wall excitations.

AB - We study I-V characteristics of periodic square Nb wire networks as a function of temperature in a transverse magnetic field, with a focus on three fillings 2/5, 1/2, and 0.618 that represent very different levels of incommensurability. For all three fillings, a scaling behavior of I-V characteristics is found, suggesting a finite temperature continuous superconducting phase transition. The low-temperature I-V characteristics are found to have an exponential form, indicative of the domain-wall excitations.

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Nature of phase transitions of superconducting wire networks in a magnetic field

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