Critical current from dynamical boundary instability for fully frustrated Josephson junction arrays
نویسندگان
چکیده
منابع مشابه
Supersolid phase in fully frustrated Josephson junction arrays
We study the phase diagram and the excitation spectra of an array of small Josephson junctions at f = 1/2 and arbitrary charge frustration. We find that the supersolid region in the phase diagram is larger than the correspondent region at f = 0 and it includes two different phases.In the chiral supersolid (SS) charges and vortices are arranged in a checkerboard pattern on a 2 × 2 supercell anal...
متن کاملResistivity scaling and critical dynamics of fully frustrated Josephson-junction arrays with on-site dissipation
We study the scaling behavior and critical dynamics of the resistive transition in Josephson-junction arrays, at f =1/2 flux quantum per plaquette, by numerical simulation of an on-site dissipation model for the dynamics. The results are compared with recent simulations using the resistively shunted-junction model. For both models, we find that the resistivity scaling and critical dynamics of t...
متن کاملTwo dynamic exponents in the resistive transition of fully frustrated Josephson-junction arrays
– We study the resistive transition in Josephson-junction arrays at f = 1/2 flux quantum per plaquette by dynamical simulations of the resistively-shunted-junction model. The current-voltage scaling and critical dynamics of the phases are found to be well described by the same critical temperature and static exponents as for the chiral (vortex-lattice) transition. Although this behavior is cons...
متن کاملZero-Temperature Superconducting Transition in Frustrated Josephson-Junction Arrays
The critical behavior of zero-temperature superconducting transitions which can occur in disordered two-dimensional Josephson-junction arrays are investigated by Monte Carlo calculation of ground-state excitation energies and dynamical simulation of the current-voltage characteristics at nonzero temperatures. Two models of arrays in an applied magnetic eld are considered: random dilution of jun...
متن کاملObservation of Ising-like critical fluctuations in frustrated Josephson junction arrays with modulated coupling energies
We report the results of ac sheet conductance measurements performed on fully frustrated square arrays of Josephson junctions whose coupling energy is periodically modulated in one of the principal lattice directions. Such systems are predicted to exhibit two distinct transitions: a low-temperature Ising-like transition triggered by the proliferation of domain walls and a high-temperature trans...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2000
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.61.7017