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Showing 1 to 14 of 14 for “"Josephson Junction Arrays"”.
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Nonlinear dynamics of two-dimensional Josephson junction arrays
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Nonlinear dynamics of one-dimensional Josephson junction arrays
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1995.
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Studies on quasicrystals, superconducting micronetworks, and Josephson junction arrays
… properties of superconducting networks and Josephson junction arrays. Quantum interference effects have been observed recently in arrays of submicron superconductors. These interferences occur as a result of the coherence of the electronic wave functions. The basic phenomenon is the …
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Proximity effect in Josephson junction arrays fabricated on topological insulators
Made available in DSpace on 2021-03-05T21:36:55Z (GMT). No. of bitstreams: 2 BAI-DISSERTATION-2020.pdf: 7442590 bytes, checksum: f2366c9674c718683d0002106a938ec5 (MD5) LICENSE.txt: 4205 bytes, checksum: ff4956a5f1f17b4512ead7f1c97af426 (MD5) Previous issue date: 2020-11-06
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Effect of disorder on the vortex dynamics in superconducting Josephson junction arrays and clusters
… disorder on the transport properties of large Josephson junction arrays and clusters. In large arrays, intrinsic random disorder results in the washing out of features in the magnetoresistance. It also gives rise to multiple onsets in the resistive transition as a function of temperature. Large …
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Photon-induced vortex-antivortex pair creation in superconducting films
… both two-dimensional superconducting films and Josephson junction arrays in the presence of 850 nm light irradiation. Specifically the experiments aim to distinguish between the formation of vortex-antivortex pairs by single photon absorption and by thermal activation. The major objective for …
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Synchronization and Signal Enhancement in Nonlinear and Stochastic Systems
… the consequences of high frequency operation of Josephson junction arrays. At high frequencies these systems are no longer well modeled by Kirchhoffs laws, and new dynamical equations are derived directly from Maxwells equations. From these equations we derive a reduced set of averaged equations …
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Compactons in strongly nonlinear lattices
… various applications in natural sciences such as Josephson junction arrays or coupled Ginzburg-Landau equations. Another part deals with Hamiltonian lattices. Here, a prominent example in which compactons can be found is the granular chain. In the third part, we study systems which are related to …
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Insulator-Superconductor Transitions in Two Dimensions
… near the point of the IST in a system of Josephson junction arrays in the presence of both particle-hole asymmetry and Ohmic dissipation. We show that in the regions where a perturbative renormalization-group treatment is valid, coupling to an Ohmic heat bath leads to non-monotonic …
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Electronic transport and structure of a surface quantum well
… methods are being developed for the creation of Josephson junction arrays on our InAs films, with which the proximity effect can be studied.
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Precise magnetic control of the supercurrent and fluxoids in nanodevices: Memory effects and diode effects
… attention. Various platforms of single Josephson junctions on TIs have been investigated to realize MZMs, but distinguishing the MZM signal is challenging due to the inherently weak signal and the presence of conventional states that coexist with MZMs. To address this issue, we …
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The cold atom toolbox in momentum space
… current-phase relationship in an analog to Josephson junction arrays, and investigating an interaction-induced shift in localization behavior under pseudodisorder. In constructing the momentum-space lattice apparatus, Eric, Bryce, and I have created a promising new platform for Hamiltonian …
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The effects of disorder on superconducting islands and island arrays
… and coupled Nb islands as well as Sn island arrays on graphene. The Nb islands provided a way to study the effects of granularity (a form of disorder) on the onset of superconductivity of mesoscopic systems. We found the onset of superconductivity in these devices to be consistent with the …
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Proximity effects and vortex dynamics in mesoscopic superconductor-normal metal-superconductor arrays
… zero. In particular, we created triangular arrays of physically separated mesoscopic superconducting islands placed on normal metal films, and measured the temperature-dependent transition to the superconducting state as a function of the island separation. We found two surprising results: …