Transport processes in YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox ramp type Josephson junctions

Yu.M. Boguslavskij; J. Gao; A.J.H.M. Rijnders; D. Terpstra; G.J. Gerritsma; H. Rogalla

doi:10.1016/S0921-4534(05)80004-8

Transport processes in YBa₂Cu₃O_x/PrBa₂Cu₃O_x/YBa₂Cu₃O_x ramp type Josephson junctions

Yu.M. Boguslavskij, J. Gao, A.J.H.M. Rijnders, D. Terpstra, G.J. Gerritsma, H. Rogalla

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Abstract

A study of the YBCO/PBCO/YBCO ramp junctions with and without PBCO barrier shows that the Josephson and normal state behavior of these structures are determined by the thickness of the PBCO barrier and its nature. The boundary resistance and depression of the YBCO superconducting parameters near the interface do not strongly affect the junction characteristic. For thicknesses of 8 to 20 nm of the PBCO barrier the Josephson coupling is established through the high resistive barrier and the behavior of the junctions is better described by a SNINS model than by a SNS weak link model. Proximity effect, resonant tunneling and strong pair breaking mechanisms are discussed to explain the experimental characteristics. Good agreement with the experimental dependence of the IcRn product on the temperature and on the PBCO barrier thickness was obtained if a strong pair breaking mechanisms in the barrier is taken into account.

Original language	English
Pages (from-to)	268-276
Number of pages	9
Journal	Physica C
Volume	194
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(05)80004-8
Publication status	Published - 1992

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title = "Transport processes in YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox ramp type Josephson junctions",

abstract = "A study of the YBCO/PBCO/YBCO ramp junctions with and without PBCO barrier shows that the Josephson and normal state behavior of these structures are determined by the thickness of the PBCO barrier and its nature. The boundary resistance and depression of the YBCO superconducting parameters near the interface do not strongly affect the junction characteristic. For thicknesses of 8 to 20 nm of the PBCO barrier the Josephson coupling is established through the high resistive barrier and the behavior of the junctions is better described by a SNINS model than by a SNS weak link model. Proximity effect, resonant tunneling and strong pair breaking mechanisms are discussed to explain the experimental characteristics. Good agreement with the experimental dependence of the IcRn product on the temperature and on the PBCO barrier thickness was obtained if a strong pair breaking mechanisms in the barrier is taken into account.",

author = "Yu.M. Boguslavskij and J. Gao and A.J.H.M. Rijnders and D. Terpstra and G.J. Gerritsma and H. Rogalla",

year = "1992",

doi = "10.1016/S0921-4534(05)80004-8",

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volume = "194",

pages = "268--276",

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T1 - Transport processes in YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox ramp type Josephson junctions

AU - Boguslavskij, Yu.M.

AU - Gao, J.

AU - Rijnders, A.J.H.M.

AU - Terpstra, D.

AU - Gerritsma, G.J.

AU - Rogalla, H.

PY - 1992

Y1 - 1992

N2 - A study of the YBCO/PBCO/YBCO ramp junctions with and without PBCO barrier shows that the Josephson and normal state behavior of these structures are determined by the thickness of the PBCO barrier and its nature. The boundary resistance and depression of the YBCO superconducting parameters near the interface do not strongly affect the junction characteristic. For thicknesses of 8 to 20 nm of the PBCO barrier the Josephson coupling is established through the high resistive barrier and the behavior of the junctions is better described by a SNINS model than by a SNS weak link model. Proximity effect, resonant tunneling and strong pair breaking mechanisms are discussed to explain the experimental characteristics. Good agreement with the experimental dependence of the IcRn product on the temperature and on the PBCO barrier thickness was obtained if a strong pair breaking mechanisms in the barrier is taken into account.

AB - A study of the YBCO/PBCO/YBCO ramp junctions with and without PBCO barrier shows that the Josephson and normal state behavior of these structures are determined by the thickness of the PBCO barrier and its nature. The boundary resistance and depression of the YBCO superconducting parameters near the interface do not strongly affect the junction characteristic. For thicknesses of 8 to 20 nm of the PBCO barrier the Josephson coupling is established through the high resistive barrier and the behavior of the junctions is better described by a SNINS model than by a SNS weak link model. Proximity effect, resonant tunneling and strong pair breaking mechanisms are discussed to explain the experimental characteristics. Good agreement with the experimental dependence of the IcRn product on the temperature and on the PBCO barrier thickness was obtained if a strong pair breaking mechanisms in the barrier is taken into account.

U2 - 10.1016/S0921-4534(05)80004-8

DO - 10.1016/S0921-4534(05)80004-8

M3 - Article

SN - 0921-4534

VL - 194

SP - 268

EP - 276

JO - Physica C

JF - Physica C

IS - 3-4

ER -

Transport processes in YBa2Cu3Ox/PrBa2Cu3Ox/YBa2Cu3Ox ramp type Josephson junctions

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Transport processes in YBa₂Cu₃O_x/PrBa₂Cu₃O_x/YBa₂Cu₃O_x ramp type Josephson junctions