Related Experiment Video
Updated: Mar 27, 2026

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
Modulation of Near-Field Radiative Heat Transfer between Weyl Semimetal/hBN Multilayers
Zhixin Pan1, Zeming Deng1, Jie Xie1
1School of Electrical and Information Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, People's Republic of China.
Abstract:
Weyl semimetals (WSMs) have attracted a considerable amount of attention in many fields due to their appealing optical properties. In this work, we study the near-field radiative heat transfer (NFRHT) between two WSM/hBN multilayer structures to analyze the coupling of surface plasmons of WSMs and nonresonant hyperbolic modes. We find that the WSM/hBN multilayer structure not only combines the SPPs and ENZ effect of WSM plates and HMs of hBN plates but also yields HSPPs that play an important role in the enhancement of NFRHT. Hence, a high total HTC of 1.80 × 104 W K-1 m-2 at d = 10 nm can be achieved, which is 1.89 and 6.45 times higher than the values of the pure WSM and pure hBN cases, respectively. The Fermi level and number of Weyl nodes of WSM plates allow for high tunability of NFRHT of the system. The effects of geometry and the topmost layer material on NFRHT are also discussed. We hope that our findings are beneficial for thermal management in WSM-based systems at the nanoscale.
Related Concept Videos
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
Metal-Semiconductor Junctions
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
Mechanisms of Heat Transfer II
Mechanism of heat transfer
Mechanisms of Heat Transfer
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Mechanisms of Heat Transfer I

