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We study heat transport in normal/superconducting graphene junctions. We find that while the thermal conductance displays the usual exponential dependence on temperature, reflecting the s-wave symmetry of the superconductor, it exhibits an…

超导电性 · 物理学 2009-11-13 Takehito Yokoyama , Jacob Linder , Asle Sudbo

A conversion of thermal energy into electricity is considered in the electrically polarized graphene stripes with zigzag edges where the heavy chiral fermion (HCF) states are formed. The stripes are characterized by a high electric…

介观与纳米尺度物理 · 物理学 2016-11-10 S. E. Shafranjuk

We investigate bilayer graphene transport in the presence of electron-hole puddles induced by long-range charged impurities in the environment. We explain the insulating behavior observed in the temperature dependent conductivity of low…

介观与纳米尺度物理 · 物理学 2010-08-24 E. H. Hwang , S. Das Sarma

We theoretically study various aspects of the electron-surface optical phonon interaction effects in graphene on a substrate made of polar materials. We calculate the electron self-energy in the presence of the surface phonon-mediated…

介观与纳米尺度物理 · 物理学 2013-03-25 E. H. Hwang , S. Das Sarma

Graphene has emerged as a paradigmatic material in condensed matter physics due to its exceptional electronic, mechanical, and thermal properties. A deep understanding of its thermoelectric transport behavior is crucial for the development…

介观与纳米尺度物理 · 物理学 2026-05-20 Juan A. Cañas , Daniel A. Bonilla , A. Martín-Ruiz

Two dimensional (2D) materials provide a unique platform to explore the full potential of magnetic proximity driven phenomena, which can be further used for applications in next generation spintronic devices. Of particular interest is to…

Numerical and closed-form analytic expressions for plasmon dispersion relations and rates of dissipation are first obtained at finite-temperatures for free-standing gapped graphene. These closed-system results are generalized to an open…

介观与纳米尺度物理 · 物理学 2016-01-20 Andrii Iurov , Godfrey Gumbs , Danhong Huang , V. M. Silkin

Warming in complex physical systems, in particular global warming, attracts significant contemporary interest. It is essential, therefore, to understand basic physical mechanisms leading to overheating. It is well known that application of…

介观与纳米尺度物理 · 物理学 2008-07-04 N. Romero Kalmanovitz , A. A. Bykov , S. A. Vitkalov , A. I. Toropov

Graphene, as a passivation layer, can be used to protect the black phosphorus from the chemical reaction with surrounding oxygen and water. However, black phosphorus and graphene heterostructures have low efficiency of heat dissipation due…

材料科学 · 物理学 2019-03-28 Yang Chen , Yingyan Zhang , Kun Cai , Jinwu Jiang , Jin-cheng Zheng , Junhua Zhao , Ning Wei

Polyvinyl-pyrrolidone (PVP) loaded with different fractions of dispersed nano-graphene platelets (NGP) were studied by Broadband Dielectric Spectroscopy in the frequency range from 1 mHz to 1 MHz. Complex permittivity and dynamic ac…

介观与纳米尺度物理 · 物理学 2017-06-28 Ch. Lampadaris , E. Sakellis , A. N. Papathanassiou

Aqueous electrolyte solutions under the influence of a temperature gradient can generate thermoelectric fields, which arise from different responses of the positive and negative charges. This is related to the thermo diffusion effect which…

软凝聚态物质 · 物理学 2022-06-23 André Luiz Sehnem , Antônio Martins Figueiredo Neto

We theoretically consider, comparing with the existing experimental literature, the electrical conductivity of gated monolayer graphene as a function of carrier density, temperature, and disorder in order to assess the prospects of…

介观与纳米尺度物理 · 物理学 2013-01-28 S. Das Sarma , E. H. Hwang

The propagation front of a crack generates large strain gradients and it is therefore a strong source of gradient-induced polarization (flexoelectricity). Herein, we demonstrate that, in piezoelectric materials, a consequence of…

材料科学 · 物理学 2019-04-10 Kumara Cordero-Edwards , Hoda Kianirad , Jordi Sort , Carlota Canalias , Gustau Catalan

We directly image hot spot formation in functioning mono- and bilayer graphene field effect transistors (GFETs) using infrared thermal microscopy. Correlating with an electrical-thermal transport model provides insight into carrier…

介观与纳米尺度物理 · 物理学 2010-12-30 Myung-Ho Bae , Zhun-Yong Ong , David Estrada , Eric Pop

Thermoelectric effects result from the coupling of charge and heat transport, and can be used for thermometry, cooling and harvesting of thermal energy. The microscopic origin of thermoelectric effects is a broken electron-hole symmetry,…

超导电性 · 物理学 2016-04-08 S. Kolenda , P. Machon , D. Beckmann , W. Belzig

Graphene, in addition to its unique electronic and optical properties, revealed unusually high thermal conductivity. The fact that thermal conductivity of large enough graphene sheets should be higher than that of basal planes of bulk…

We study the radiative heat transfer and the van der Waals friction between graphene and an amorphous SiO$_2$ substrate. We study the surface phonon-polaritons contribution to the low-field mobility as a function of temperature and of…

介观与纳米尺度物理 · 物理学 2014-09-03 A. I. Volokitin , B. N. J. Persson

Graphene/AlGaN/GaN heterostructures are proposed to investigate the drag and two-stream instability effects. In this study, graphene grown by chemical vapor deposition was transferred from copper onto the top of the standard AlGaN/GaN…

介观与纳米尺度物理 · 物理学 2026-01-27 A. Rehman , D. B. But , P. Sai , M. Dub , P. Prystawko , A. Krajewska , G. Cywinski , W. Knap , S. Rumyantsev

The electrons in graphene for energies close to the Dirac point have been found to form strongly interacting fluid. Taking this fact into account we have extended previous work on the transport properties of graphene by taking into account…

高能物理 - 理论 · 物理学 2018-03-14 Marek Rogatko , Karol. I. Wysokinski

We performed detailed studies of the current-voltage characteristics in graphene/MoS2/metal vertical field-effect transistors. Owing to its low density of states, the Fermi level in graphene is very sensitive to its carrier density and thus…

介观与纳米尺度物理 · 物理学 2015-06-03 Rai Moriya , Takehiro Yamaguchi , Yoshihisa Inoue , Yohta Sata , Sei Morikawa , Satoru Masubuchi , Tomoki Machida