Results 21 to 30 of about 2,714,137 (338)

Quantized Nonlinear Conductance in Ballistic Metals [PDF]

open access: yesPhysical Review Letters, 2022
We introduce a non-linear frequency dependent D+1 terminal conductance that characterizes a D dimensional Fermi gas, generalizing the Landauer conductance in D=1. For a 2D ballistic conductor we show that this conductance is quantized and probes the Euler characteristic of the Fermi sea.
openaire   +3 more sources

Surface Charge Transport Characteristics of ZnO/Silicone Rubber Composites Under Impulse Superimposed on DC Voltage

open access: yesIEEE Access, 2019
Composites with nonlinear conductivity have been applied to modify the direct current (dc) electrical field distribution and accelerate the space charge dissipation in polymeric insulation.
Zhonglei Li, Zhuoran Yang, Boxue Du
doaj   +1 more source

Intrinsic nonlinear conductivity induced by quantum geometry in altermagnets and measurement of the in-plane Néel vector [PDF]

open access: yesPhysical review B
The $z$-component of the N\'{e}el vector is measurable by the anomalous Hall conductivity in altermagnets because time reversal symmetry is broken. On the other hand, it is a nontrivial problem how to measure the in-plane component of the N\'{e}el vector.
M. Ezawa
semanticscholar   +1 more source

Overview of Various Models of Insulators with Thin Coating Layers [PDF]

open access: yesEPJ Web of Conferences
In this study, the electric potential distribution along an insulator model coated with a thin stress grading material was analyzed using a numerical formulation based on the Spectral Collocation Method (CSM).
Dhahbi-Megriche Nabila   +2 more
doaj   +1 more source

Nonlinear Ionic Conductivity of Thin Solid Electrolyte Samples: Comparison between Theory and Experiment [PDF]

open access: yes, 2005
Nonlinear conductivity effects are studied experimentally and theoretically for thin samples of disordered ionic conductors. Following previous work in this field the {\it experimental nonlinear conductivity} of sodium ion conducting glasses is analyzed ...
Andreas Heuer   +6 more
core   +1 more source

Theoretical analysis and application of polymer-matrix field grading materials in HVDC cable terminals

open access: yesHigh Voltage, 2017
The distortion and uneven distribution of electric field in high-voltage direct current (HVDC) terminal insulator is the key problem for stable running of the power transmission system.
Peng Han   +3 more
doaj   +1 more source

Asymmetric Heat Conduction in Nonlinear Lattices [PDF]

open access: yesPhysical Review Letters, 2006
In this Letter, we conduct an extensive study of the two-segment Frenkel-Kontorova model. We show that the rectification effect of the heat flux reported in recent literature is possible only in the weak interfacial coupling limit. The rectification effect will be reversed when the properties of the interface and the system size change. These two types
Hu, B. B., Yang, L., Zhang, Y.
openaire   +2 more sources

Thermodynamics and gauge/gravity duality for Lifshitz black holes in the presence of exponential electrodynamics [PDF]

open access: yes, 2016
In this paper, we construct a new class of topological black hole Lifshitz solutions in the presence of nonlinear exponential electrodynamics for Einstein-dilaton gravity.
Dehghani, M. H.   +3 more
core   +2 more sources

Excitation probability and effective temperature in the stationary regime of conductivity for Coulomb Glasses

open access: yesOpen Physics, 2017
In this paper, we shall illustrate the numerical calculation of the effective temperature in Coulomb glasses by excitation probability provided that the system has been placed in a stationary state after applying a strong electric field.
Caravaca Garratón Manuel   +1 more
doaj   +1 more source

Nonlinear electric conductivity and THz-induced charge transport in graphene

open access: yesNew Journal of Physics, 2021
Based on the quantum master equation approach, the nonlinear electric conductivity of graphene is investigated under static electric fields for various chemical potential shifts.
Shunsuke A Sato, Angel Rubio
doaj   +1 more source

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