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The effect of the SiO$_2$ substrate on a graphene film is investigated using realistic but computationally convenient energy-optimized models of the substrate supporting a layer of graphene. The electronic bands are calculated using…

介观与纳米尺度物理 · 物理学 2007-11-06 M. W. C. Dharma-wardana

Heat is a familiar form of energy transported from a hot side to a colder side of an object, but not a notion associated with microscopic measurements of electronic properties. A temperature difference within a material causes charge…

Graphene-like two-dimensional (2D) materials, not only are interesting for their exotic electronic structure and fundamental electronic transport or optical properties but also, hold promises for device miniaturization down to atomic…

Using fully electromagnetic particle-in-cell/Monte Carlo simulations, the electron heating due to interaction with a moving sheath is demonstrated to dominate in surface wave-driven discharges at microwave frequencies and relatively low…

等离子体物理 · 物理学 2025-06-05 Denis Eremin , Andrew T. Powis , Igor D. Kaganovich

Very recently it has been predicted that the far-field radiative heat transfer between two macroscopic systems can largely overcome the limit set by Planck's law if one of their dimensions becomes much smaller than the thermal wavelength…

We investigate the effect of contact geometry on the instantaneous thermoelectric response of a quantum dot pushed suddenly into the Kondo regime via a gate voltage using time dependent non-crossing approximation and linear response Onsager…

介观与纳米尺度物理 · 物理学 2015-06-16 Ali Goker , Elif gedik

Near-field radiative heat transfer allows heat to propagate across a small vacuum gap in quantities that are several orders of magnitude greater then the heat transfer by far-field, blackbody radiation. Although heat transfer via near-field…

The field trap effect on the microcavity surface under the action of an electric field is not conducive to boiling heat transfer. This numerical study found that using conducting-insulating microcavity surfaces in an electric field removes…

流体动力学 · 物理学 2023-10-18 Fanming Cai , Zhaomiao Liu , Nan Zheng , Yan Pang

The extreme versatility of two-dimensional van der Waals (vdW) materials derives from their ability to exhibit new electronic properties when assembled in proximity with dissimilar crystals. For example, although graphene is inherently…

We examine the enhancement of the interfacial superconductivity between LaAlO$_{3}$ and SrTiO$_{3}$ by an effective electric field. Through the breaking of inversion symmetry at the interface, we show that a term coupling the superfluid…

超导电性 · 物理学 2015-06-03 Jason T. Haraldsen , Peter Wölfle , Alexander V. Balatsky

Hysteretic gate responses of two-dimensional material heterostructures serve as sensitive probes of the underlying electronic states and hold significant promise for the development of novel nanoelectronic devices. Here we identify a new…

Following the emergence of many novel two-dimensional (2-D) materials beyond graphene, interest has grown in exploring implications for fundamental physics and practical applications, ranging from electronics, photonics, phononics, to…

材料科学 · 物理学 2018-12-05 Xiaokun Gu , Yujie Wei , Xiaobo Yin , Baowen Li , Ronggui Yang

This article reviews the main theoretical and experimental advances regarding the interaction between surface acoustic waves (SAWs) and electronic excitations in graphene. The coupling of the graphene electron gas to the SAW piezoelectric…

介观与纳米尺度物理 · 物理学 2019-02-26 A. Hernández-Mínguez , Y. -T. Liou , P. V. Santos

The many-body radiative heat transfer theory [P. Ben-Abdallah, S.-A. Biehs, and K. Joulain, Phys. Rev. Lett. 107, 114301 (2011)] only considered the contribution from the electric dipole moment. For metal particles, however, the magnetic…

其他凝聚态物理 · 物理学 2017-04-05 Jian Dong , Junming Zhao , Linhua Liu

The entire graphene field-effect-transistor (FET) devices first fabricated on SiO2/Si are peeled from the surface and placed on a different wafer. Both longitudinal and transverse resistivity measurements of the devices before and after the…

介观与纳米尺度物理 · 物理学 2015-06-18 Raymond Sachs , Zhisheng Lin , Patrick Odenthal , Roland Kawakami , Jing Shi

Radiative heat transfer is of great interest from a fundamental point of view and for energy harvesting applications. This is a material dependent phenomenon where confined plasmonic excitations, hyperbolicity and other properties can be…

介观与纳米尺度物理 · 物理学 2025-10-27 Long Ma , Dai-Nam Le , Lilia M. Woods

In this review, we discuss the impact of interfaces and heterojuctions on the electronic and thermoelectric transport properties of materials. We review recent progress in understanding electronic transport in two-dimensional (2D) materials…

介观与纳米尺度物理 · 物理学 2019-10-02 Arnab K. Majee , Adithya Kommini , Zlatan Aksamija

The electronic structure of the zero-gap two-dimensional graphene has a charge neutrality point exactly at the Fermi level that limits the practical application of this material. There are several ways to modify the Fermi-level-region of…

材料科学 · 物理学 2017-09-13 Elena Voloshina , Denis Usvyat , Martin Schuetz , Yuriy Dedkov , Beate Paulus

Conductivity of monolayer and two-layer graphene is considered with due regard for mutual drag of band electrons and holes. Search of contribution of the drag in conductivity shows that this effect can sufficiently influence on mobility of…

介观与纳米尺度物理 · 物理学 2010-11-05 I. I. Boiko

We study the effects of electrostatic gating on the lateral distribution of charge carriers in two dimensional devices, in a non-linear dielectric environment. We compute the charge distribution using the Thomas-Fermi approximation to model…

介观与纳米尺度物理 · 物理学 2020-03-05 Eylon Persky , Hyeok Yoon , Yanwu Xie , Harold Y. Hwang , Jonathan Ruhman , Beena Kalisky