Circulating Current Ratio for DC SQUIDs

Eatesami, M.; Sadeghzadeh, Mohammad Ali

doi:10.1007/s10948-010-0844-3

Cited by 1 publication

(2 citation statements)

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“…and parameters on the VCC and controls the interactions between the junctions in contact with the biasing current and the applied magnetic flux [22].…”

Section: Discussionmentioning

confidence: 99%

“…Here, we assume T = 77 K (any exception is specified), and for the applied flux values equivalent to ϕ x = 0 or ϕ x = π/2 (considering that V is π periodic) and for the other parameters, we assume values around practical values [19]. In contrast to the case for the small-inductance limit [20][21][22], in the large-inductance limit, α and R appear in simple forms as in equation (1). So, V e α/2 /R is independent of α and R. In [18], we inspected the voltage modulation and its interesting behavior due to the asymmetry of junctions and the presence of second harmonics.…”

Section: Some Evidence For the Internal Shapiro Effectmentioning

confidence: 99%

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The internal Shapiro effect in some portions of the parameter space of asymmetric two-junction SQUIDs and its influences

Eatesami¹

2013

Supercond. Sci. Technol.

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The Shapiro effect is known, with regular steps in the voltage-current characteristic of a Josephson junction in the presence of microwave radiation, and so are its applications. In asymmetric two-junction SQUIDs (superconducting quantum interference devices), in particular the interactions between various current contributions in the two junctions lead to more varied and richer conditions. In this paper, we discuss the possibility and the impacts of a kind of internal Shapiro effect in some portions of the parameter space of the asymmetric high-T C SQUID with overdamped junctions and large loop inductance. In this predicted phenomenon, the required high-frequency radiation is produced spontaneously in the interior of the SQUID. The main message is the importance of achieving a set of nine parameters for the device whose voltage-current characteristics show no indication of spike-step-like structures.

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“…and parameters on the VCC and controls the interactions between the junctions in contact with the biasing current and the applied magnetic flux [22].…”

Section: Discussionmentioning

confidence: 99%