搜索结果: 1-15 共查到“物理学 Y-Junctions”相关记录28条 . 查询时间(0.052 秒)
Topological Insulator Magnetic Tunnel Junctions: Quantum Hall Effect and Fractional Charge via Folding
Topological Insulator Magnetic Tunnel Junctions Quantum Hall Effect Fractional Charge Folding
2012/2/27
We provide a characterization of tunneling between coupled topological insulators in 2D and 3D under the influence of a ferromagnetic layer. We explore conditions for such systems to exhibit integer q...
First-principles Analysis of Photo-current in Graphene PN Junctions
First-principles Analysis Photo-current Graphene PN Junctions
2012/2/29
We report a first principles investigation of photocurrent generation by graphene PN junctions. The junctions are formed by either chemically doping with nitrogen and boron atoms, or by controlling ga...
Surface tension of multi-phase flow with multiple junctions governed by the variational principle
multi-phase flowsurface tensionmultiple junctionvolume preserving diffeomorphism
2011/8/17
Abstract: We explore a computational model of an incompressible fluid with a multi-phase field in three-dimensional Euclidean space. By investigating an incompressible fluid with a two-phase field geo...
Phase transitions in the distribution of the Andreev conductance of superconductor-metal junctions with many transverse modes
Phase transitions superconductor-metal junctions transverse mode Statistical Mechanics
2011/7/27
Phase transitions in the distribution of the Andreev conductance of superconductor-metal junctions with many transverse modes.
We present a technique to fabricate tunnel junctions between graphene and Al and Cu, with a Si back gate, as well as a simple theory of tunneling between a metal and graphene.
Microwave Photon Counter Based on Josephson Junctions
University of Wisconsin, Madison University of Waterloo
2010/11/24
The strong interaction of superconducting in-tegrated circuits with microwave photons forms
the basis of circuit quantum electrodynamics (cQED), an attractive paradigm for scalable
quantum computing...
Stochastic dynamics for a single vibrational mode in molecular junctions
Stochastic dynamics single vibrational mode molecular junctions
2010/11/24
We propose a very accurate computational scheme for the dynamics of a classical oscillator coupledto a molecular junction driven by a finite bias, including the finite mass effect. We focus o n two mi...
Conductance of Tomonaga-Luttinger liquid wires and junctions with resistances
Tomonaga-Luttinger liquid wires junctions with resistances
2010/11/25
We study the effect that resistive regions have on the conductance of a quantum wire with interacting electrons which is connected to Fermi liquid leads. Using the bosonization formalism and a Rayleig...
Possibility of exchange switching ferromagnet - antiferromagnet junctions
Possibility of exchange ferromagnet - antiferromagnet junctions
2010/11/24
Current flowing is studied in magnetic junctions consisting of a ferromagnetic metal (FM), antiferromagnetic conductor (AFM) and a nonmagnetic metal closing the electric circuit. The FM layer with hig...
Mechanical control of vibrational states in single-molecule junctions
Mechanical control single-molecule junctions
2010/11/23
We report on inelastic electron tunneling spectroscopy measurements carried out on single
molecules incorporated into a mechanically controllable break-junction of Au and Pt electrodes at low tempera...
Thermally induced 0-pi phase transition in Josephson junctions through a ferromagnetic oxide film
Thermally induced 0-pi phase transition Josephson junctions through ferromagnetic oxide film
2010/11/9
We investigate the Josephson transport through a ferromagnetic oxide film, e.g., La$_2$BaCuO$_5$, theoretically. Using the recursive Green's function technique, we found the formation of a pi-junction...
Macroscopic quantum tunneling in multigap superconducting Josephson junctions: Escape rate enhancement via quantum fluctuations of Josephson-Leggett mode
Macroscopic quantum superconducting Josephson Escape rate enhancement Josephson-Leggett mode
2010/11/5
We theoretically study the macroscopic quantum tunneling (MQT) in a hetero Josephson junction formed by a conventional single-gap superconductor and a multi-gap one such as ${MgB}_{2}$ and iron-based...
Theory of quantum transport in Josephson junctions with a ferromagnetic insulator
Theory of quantum Josephson junctions ferromagnetic insulator
2010/10/27
We investigate the Josephson transport through ferromagnetic insulators (FIs) by taking into
account the band structure of FIs explicitly. Using the recursive Green’s function method, we found the fo...
Dynamics of point Josephson junctions in a microstrip line
point Josephson junctions microstrip line
2010/4/6
We analyze a new long wave model describing the electrodynamics of an array of point Josephson junctions in a superconducting cavity. It consists in a wave equation with Dirac delta function sine nonl...
Theory of two-dimensional macroscopic quantum tunneling in YBa$_2$ Cu$_3$ O$_{7-\delta}$ Josephson junctions coupled to an LC circuit
two-dimensional macroscopic quantum tunneling LC circuit
2010/4/13
We investigate classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) Josephson junction coupled to an LC circuit theoretically. Due to the ...
