Calculation of giant fractional Shapiro steps in Josephson-junction arrays
K. H. Lee, D. Stroud, J. S. Chung
DOI 10.1103/PhysRevLett.64.962 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We calculate the rsponse of an N×N array of resistively shunted Josephson junctions to an imposed current I=Idc+Iacsin(2πνt). In a transverse dc magnetic field of p/q==f flux quanta per plaquette of area, we find fractional giant Shapiro steps in the time-averaged voltage 〈V〉 at values 〈V〉=nNhν/2eq, n=1,2,3,..., in agreement with the measurements of Benz et al. At f=1/5, 2/5, and 1/3, we find additional fractional steps at 〈V〉=Nhν/(4e). A generalization of the model of Benz et al. accounts for both the fractional giant steps at p/q and the anomalous half-integer steps.
Similar papers
Giant Shapiro steps in Josephson-junction arrays
similarity 0.95Thomas C. Halsey
Source status unknown — claims are unverified
Dynamical simulations of fractional giant Shapiro steps in two-dimensional Josephson arrays
similarity 0.94J. U. Free et al.
Source status unknown — claims are unverified
Half-integer Shapiro steps in single-plaquette Josephson-junction arrays in a magnetic field
similarity 0.93L. L. Sohn & M. Octavio
Source status unknown — claims are unverified
Fractional Shapiro steps in ladder Josephson arrays
similarity 0.93Wenbin Yu et al.
Source status unknown — claims are unverified
Absence of fractional giant Shapiro steps in diagonal Josephson-junction arrays
similarity 0.92L. L. Sohn et al.
Source status unknown — claims are unverified
Transverse phase-locking in fully frustrated Josephson junction arrays: a new type of fractional giant steps
similarity 0.91Veronica Marconi et al. · 2003 · arXiv:cond-mat/0304402
Source status unknown — claims are unverified