Microwave irradiation on a-axis oriented Y123/Pr123 two-stacked Josephson junctions device

S. Saini; P. Mele; M. Mukaida; S. J. Kim

doi:10.1016/j.cap.2015.01.021

Microwave irradiation on a-axis oriented Y123/Pr123 two-stacked Josephson junctions device

S. Saini, P. Mele, M. Mukaida, S. J. Kim

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

3 Citations (Scopus)

Abstract

Two-stacked submicron Josephson junctions devices were fabricated in a-axis oriented YBaCu₃O₇ and PrBa₂Cu₃O₇ (Y123/Pr123) multi layered thin films using focused ion beam milling technique. The transition temperature and critical current density (J_c) of the device are about 83 K and 5 × 10⁵ A/cm² at 20 K, respectively. The device was irradiated with external microwave of 10 GHz and studied at 20 K. The microwave induced voltage steps are observed in I-V characteristics. The supercurrent branch become resistive above a certain microwave power and also the J_c was suppressed as we increased the microwave power. Magnetic field modulation of critical current shows periodicity of about 2000 gauss correspond to the Josephson junctions in the stack.

Original language	English
Pages (from-to)	569-573
Number of pages	5
Journal	Current Applied Physics
Volume	15
Issue number	5
DOIs	https://doi.org/10.1016/j.cap.2015.01.021
Publication status	Published - May 2015

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2015.01.021

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title = "Microwave irradiation on a-axis oriented Y123/Pr123 two-stacked Josephson junctions device",

abstract = "Two-stacked submicron Josephson junctions devices were fabricated in a-axis oriented YBaCu3O7 and PrBa2Cu3O7 (Y123/Pr123) multi layered thin films using focused ion beam milling technique. The transition temperature and critical current density (Jc) of the device are about 83 K and 5 × 105 A/cm2 at 20 K, respectively. The device was irradiated with external microwave of 10 GHz and studied at 20 K. The microwave induced voltage steps are observed in I-V characteristics. The supercurrent branch become resistive above a certain microwave power and also the Jc was suppressed as we increased the microwave power. Magnetic field modulation of critical current shows periodicity of about 2000 gauss correspond to the Josephson junctions in the stack.",

author = "S. Saini and P. Mele and M. Mukaida and Kim, {S. J.}",

year = "2015",

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T1 - Microwave irradiation on a-axis oriented Y123/Pr123 two-stacked Josephson junctions device

AU - Saini, S.

AU - Mele, P.

AU - Mukaida, M.

AU - Kim, S. J.

PY - 2015/5

Y1 - 2015/5

N2 - Two-stacked submicron Josephson junctions devices were fabricated in a-axis oriented YBaCu3O7 and PrBa2Cu3O7 (Y123/Pr123) multi layered thin films using focused ion beam milling technique. The transition temperature and critical current density (Jc) of the device are about 83 K and 5 × 105 A/cm2 at 20 K, respectively. The device was irradiated with external microwave of 10 GHz and studied at 20 K. The microwave induced voltage steps are observed in I-V characteristics. The supercurrent branch become resistive above a certain microwave power and also the Jc was suppressed as we increased the microwave power. Magnetic field modulation of critical current shows periodicity of about 2000 gauss correspond to the Josephson junctions in the stack.

AB - Two-stacked submicron Josephson junctions devices were fabricated in a-axis oriented YBaCu3O7 and PrBa2Cu3O7 (Y123/Pr123) multi layered thin films using focused ion beam milling technique. The transition temperature and critical current density (Jc) of the device are about 83 K and 5 × 105 A/cm2 at 20 K, respectively. The device was irradiated with external microwave of 10 GHz and studied at 20 K. The microwave induced voltage steps are observed in I-V characteristics. The supercurrent branch become resistive above a certain microwave power and also the Jc was suppressed as we increased the microwave power. Magnetic field modulation of critical current shows periodicity of about 2000 gauss correspond to the Josephson junctions in the stack.

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Microwave irradiation on a-axis oriented Y123/Pr123 two-stacked Josephson junctions device

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