Measurements of the absolute value of the penetration depth in high-Tc superconductors using a low-Tc superconductive coating

R. Prozorov; R. W. Giannetta; A. Carrington; P. Fournier; R. L. Greene; P. Guptasarma; D. G. Hinks; A. R. Banks

doi:10.1063/1.1328362

Measurements of the absolute value of the penetration depth in high-T_c superconductors using a low-T_c superconductive coating

R. Prozorov, R. W. Giannetta, A. Carrington, P. Fournier, R. L. Greene, P. Guptasarma, D. G. Hinks, A. R. Banks

Physics

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

Abstract

A method is presented to measure the absolute value of the London penetration depth, λ(T = O), from the frequency shift of a resonator. The technique involves coating a high-T_c superconductor with film of low-T_c material of known thickness and penetration depth. The method is applied to obtain λ(YBa₂Cu₃O_{7 -δ}) ≈ 1460 ± 150 Å, λ(Bi₂Sr₂CaCu₂O_{8 + δ}) ≈ 2690 ± 150 Å and λ(Pr_1.85Ce_0.15CuO_{4 - δ}) ≈ 2790 ± 150 Å. λ(YBa₂Cu₃O_{7 - δ}) from this method is very close to that obtained by several other techniques. For both Bi₂Sr₂CaCu₂O_{8 + δ} and Pr_1.85Ce_0.15CuO_{4 - δ} the values exceed those obtained by other methods.

Original language	English (US)
Pages (from-to)	4202-4204
Number of pages	3
Journal	Applied Physics Letters
Volume	77
Issue number	25
DOIs	https://doi.org/10.1063/1.1328362
State	Published - Dec 18 2000

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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@article{ef9558ea8878440abb3ca42d350a26d6,

title = "Measurements of the absolute value of the penetration depth in high-Tc superconductors using a low-Tc superconductive coating",

abstract = "A method is presented to measure the absolute value of the London penetration depth, λ(T = O), from the frequency shift of a resonator. The technique involves coating a high-Tc superconductor with film of low-Tc material of known thickness and penetration depth. The method is applied to obtain λ(YBa2Cu3O7 -δ) ≈ 1460 ± 150 {\AA}, λ(Bi2Sr2CaCu2O8 + δ) ≈ 2690 ± 150 {\AA} and λ(Pr1.85Ce0.15CuO4 - δ) ≈ 2790 ± 150 {\AA}. λ(YBa2Cu3O7 - δ) from this method is very close to that obtained by several other techniques. For both Bi2Sr2CaCu2O8 + δ and Pr1.85Ce0.15CuO4 - δ the values exceed those obtained by other methods.",

author = "R. Prozorov and Giannetta, {R. W.} and A. Carrington and P. Fournier and Greene, {R. L.} and P. Guptasarma and Hinks, {D. G.} and Banks, {A. R.}",

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T1 - Measurements of the absolute value of the penetration depth in high-Tc superconductors using a low-Tc superconductive coating

AU - Prozorov, R.

AU - Giannetta, R. W.

AU - Carrington, A.

AU - Fournier, P.

AU - Greene, R. L.

AU - Guptasarma, P.

AU - Hinks, D. G.

AU - Banks, A. R.

PY - 2000/12/18

Y1 - 2000/12/18

N2 - A method is presented to measure the absolute value of the London penetration depth, λ(T = O), from the frequency shift of a resonator. The technique involves coating a high-Tc superconductor with film of low-Tc material of known thickness and penetration depth. The method is applied to obtain λ(YBa2Cu3O7 -δ) ≈ 1460 ± 150 Å, λ(Bi2Sr2CaCu2O8 + δ) ≈ 2690 ± 150 Å and λ(Pr1.85Ce0.15CuO4 - δ) ≈ 2790 ± 150 Å. λ(YBa2Cu3O7 - δ) from this method is very close to that obtained by several other techniques. For both Bi2Sr2CaCu2O8 + δ and Pr1.85Ce0.15CuO4 - δ the values exceed those obtained by other methods.

AB - A method is presented to measure the absolute value of the London penetration depth, λ(T = O), from the frequency shift of a resonator. The technique involves coating a high-Tc superconductor with film of low-Tc material of known thickness and penetration depth. The method is applied to obtain λ(YBa2Cu3O7 -δ) ≈ 1460 ± 150 Å, λ(Bi2Sr2CaCu2O8 + δ) ≈ 2690 ± 150 Å and λ(Pr1.85Ce0.15CuO4 - δ) ≈ 2790 ± 150 Å. λ(YBa2Cu3O7 - δ) from this method is very close to that obtained by several other techniques. For both Bi2Sr2CaCu2O8 + δ and Pr1.85Ce0.15CuO4 - δ the values exceed those obtained by other methods.

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