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相关论文: Nonlinear electrical conductivity in a 1D granular…

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We explore the physics of novel fermion liquids emerging from conducting networks, where 1D metallic wires form a periodic 2D superstructure. Such structure naturally appears in marginally-twisted bilayer graphenes, moire transition metal…

强关联电子 · 物理学 2021-05-11 Jongjun M. Lee , Masaki Oshikawa , Gil Young Cho

We investigate how temperature affects transport through large networks of nonlinear conductances with distributed thresholds. In monolayers of weakly-coupled gold nanocrystals, quenched charge disorder produces a range of local thresholds…

介观与纳米尺度物理 · 物理学 2007-05-23 Raghuveer Parthasarathy , Xiao-Min Lin , Klara Elteto , T. F. Rosenbaum , Heinrich M. Jaeger

Transport properties of the charge ordering compound $\beta-$Na$_{0.33}$V$_2$O$_5$ are studied in the temperature range from 30 K to 300 K using current driven DC conductivity experiments. It is found that below the metal-insulator…

强关联电子 · 物理学 2009-11-11 S. Sirbu , P. H. M. van Loosdrecht , T. Yamauchi , Y. Ueda , .

Transport through a one--dimensional wire of interacting electrons connected to semi--infinite leads is investigated using a bosonization approach. An incident electron is transmitted as a sequence of partial charges. The dc conductance is…

凝聚态物理 · 物理学 2009-10-28 I. Safi , H. J. Schulz

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

介观与纳米尺度物理 · 物理学 2009-11-10 Shi-Jie Yang , Yue Yu

The features of electric transport in the powder samples consisting of the nanosize 2D-MoS2 flakes with different number of layers have been studied under the conditions of uniaxial pressure. There have been measured current-voltage…

介观与纳米尺度物理 · 物理学 2024-07-29 V. V. Vainberg , O. S. Pylypchuk , V. N. Poroshin , M. V. Olenchuk , G. I. Dovbeshko

Distribution function and current density in a one-dimensional superlattice with parabolic miniband are calculated. The current dependence on the temperature coincides with experimental data. Generalization is carried out to…

介观与纳米尺度物理 · 物理学 2009-09-29 G. M. Shmelev , T. A. Gorshenina , E. M. Epshtein

We study the temperature-dependent corrections to the conductance due to electron-electron (e-e) interactions in clean two-dimensional conductors, such as lightly doped graphene or other Dirac matter. We use semiclassical Boltzmann kinetic…

介观与纳米尺度物理 · 物理学 2018-08-01 A. Uzair , K. Sabeeh , Markus Mueller

We have developed a system for contactless measurement of nonlinear conductivity in the radio-frequency band, and over a wide temperature range. A non-resonant circuit is used to electrically excite the sample, and the induced signal is…

仪器与探测器 · 物理学 2014-07-25 Marija Došlić , Damjan Pelc , Miroslav Požek

We study the dynamical correlation functions and heat conduction for the simplest model of quasi one-dimensional (1d) dielectric crystal i.e. a chain of classical particles coupled by quadratic and cubic intersite potential. Even in the…

统计力学 · 物理学 2009-10-31 Stefano Lepri

We present experimental investigations of transport properties in the insulating phase of two-dimensional Josephson-junction arrays (JJAs) by systematically changing the ratio of Josephson energy $E_\mathrm{J}$ and charging energy…

超导电性 · 物理学 2022-11-24 Hiroki Ikegami , Yasunobu Nakamura

We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. Through the application of circularly polarised light and coupling to a thermal free electron bath, the system…

强关联电子 · 物理学 2019-09-04 Oliver Hart , Garry Goldstein , Claudio Chamon , Claudio Castelnovo

We consider a transmission of electrons through a two-dimensional ballistic point contact in the low-conductance regime below the 0.7-anomaly. The scattering of electrons by Friedel oscillations of charge density results in a contribution…

介观与纳米尺度物理 · 物理学 2013-01-10 Tatiana Krishtop , Kirill Nagaev

The discovery of superconductivity with a critical temperature of about 80~K in La$_{3}$Ni$_{2}$O$_{7}$ single crystals under pressure has received enormous attention. La$_{3}$Ni$_{2}$O$_{7}$ is not superconducting under ambient pressure…

超导电性 · 物理学 2024-09-12 Zhe Liu , Mengwu Huo , Jie Li , Qing Li , Yuecong Liu , Yaomin Dai , Xiaoxiang Zhou , Jiahao Hao , Yi Lu , Meng Wang , Hai-Hu Wen

We investigate analytically as well as numerically effects of nonlinear Born-Infeld (BI) electrodynamics on the properties of (1+1)-dimensional holographic $p$-wave superconductor in the context of gauge/gravity duality. We consider the…

高能物理 - 理论 · 物理学 2019-11-01 Mahya Mohammadi , Ahmad Sheykhi

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…

介观与纳米尺度物理 · 物理学 2022-02-17 C. L. Kane

Transitions to immeasurably small electrical resistance in thin films of Ag/Au nanostructure-based films have generated significant interest because such transitions can occur even at ambient temperature and pressure. While the zero-bias…

In the search of high-temperature superconductivity one option is to focus on increasing the density of electronic states. Here we study both the normal and $s$-wave superconducting state properties of periodically strained graphene, which…

超导电性 · 物理学 2020-08-26 Teemu J. Peltonen , Tero T. Heikkilä

We simulate bulk materials under strong currents by following in real-time the dynamics of the electrons under an electric field. By changing the intensity of the electric field, our method can model, for the first time, non-linear effects…

材料科学 · 物理学 2017-02-03 Xavier Andrade , Sebastien Hamel , Alfredo A. Correa

We study charge transport across the metal-insulator crossover in the half-filled two-dimensional Hubbard model, with particular emphasis on precision control. The dynamic current-current correlation function is obtained directly in the…