Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa2Cu3Oy SQUIDs

H. E. Horag; J. H. Lu; J. M. Wu; S. Y. Yang; H. C. Yang; J. D. Chern

doi:10.1109/77.622219

Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa₂Cu₃O_y SQUIDs

H. E. Horag^*, J. H. Lu, J. M. Wu, S. Y. Yang, H. C. Yang, J. D. Chern

^*Corresponding author for this work

Undergraduate Program of Electro-Optical Engineering

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

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Abstract

Current-voltage (I-V) curves of step-edge YBa2Cu3Oy junctions SQUIDs and Junctions in parallel in a magnetic field and under microwave irradiation were measured. I_C-curves for a single Josephson junctions show Fraunhofer diffraction pattern. The voltage of SQUIDs and Josephson junctions in parallel at a constant bias current is modulated by external magnetic fields. In additional to integer Shapiro steps non-integer constant-voltage steps were observed under microwave irradiation in bi-epitaxial SQUIDs. The noninteger voltage steps can be modulated by the microwave power and the applied magnetic field.

Original language	English
Pages (from-to)	3690-3693
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	7
Issue number	2 PART 3
DOIs	https://doi.org/10.1109/77.622219
Publication status	Published - 1997

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa2Cu3Oy SQUIDs",

abstract = "Current-voltage (I-V) curves of step-edge YBa2Cu3Oy junctions SQUIDs and Junctions in parallel in a magnetic field and under microwave irradiation were measured. IC-curves for a single Josephson junctions show Fraunhofer diffraction pattern. The voltage of SQUIDs and Josephson junctions in parallel at a constant bias current is modulated by external magnetic fields. In additional to integer Shapiro steps non-integer constant-voltage steps were observed under microwave irradiation in bi-epitaxial SQUIDs. The noninteger voltage steps can be modulated by the microwave power and the applied magnetic field.",

author = "Horag, {H. E.} and Lu, {J. H.} and Wu, {J. M.} and Yang, {S. Y.} and Yang, {H. C.} and Chern, {J. D.}",

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T1 - Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa2Cu3Oy SQUIDs

AU - Horag, H. E.

AU - Lu, J. H.

AU - Wu, J. M.

AU - Yang, S. Y.

AU - Yang, H. C.

AU - Chern, J. D.

PY - 1997

Y1 - 1997

N2 - Current-voltage (I-V) curves of step-edge YBa2Cu3Oy junctions SQUIDs and Junctions in parallel in a magnetic field and under microwave irradiation were measured. IC-curves for a single Josephson junctions show Fraunhofer diffraction pattern. The voltage of SQUIDs and Josephson junctions in parallel at a constant bias current is modulated by external magnetic fields. In additional to integer Shapiro steps non-integer constant-voltage steps were observed under microwave irradiation in bi-epitaxial SQUIDs. The noninteger voltage steps can be modulated by the microwave power and the applied magnetic field.

AB - Current-voltage (I-V) curves of step-edge YBa2Cu3Oy junctions SQUIDs and Junctions in parallel in a magnetic field and under microwave irradiation were measured. IC-curves for a single Josephson junctions show Fraunhofer diffraction pattern. The voltage of SQUIDs and Josephson junctions in parallel at a constant bias current is modulated by external magnetic fields. In additional to integer Shapiro steps non-integer constant-voltage steps were observed under microwave irradiation in bi-epitaxial SQUIDs. The noninteger voltage steps can be modulated by the microwave power and the applied magnetic field.

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JF - IEEE Transactions on Applied Superconductivity

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ER -

Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa₂Cu₃O_y SQUIDs

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