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Joule heating

About: Joule heating is a research topic. Over the lifetime, 9996 publications have been published within this topic receiving 154621 citations.


Papers
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Journal ArticleDOI
Eric Pop1, David J. Mann1, Qian Wang1, Kenneth E. Goodson1, Hongjie Dai1 
TL;DR: This work discusses sources of uncertainty and proposes a simple analytical model for the SWNT thermal conductivity including length and temperature dependence, which is attributed to second-order three-phonon scattering between two acoustic modes and one optical mode.
Abstract: The thermal properties of a suspended metallic single-wall carbon nanotube (SWNT) are extracted from its high-bias (I−V) electrical characteristics over the 300−800 K temperature range, achieved by Joule self-heating. The thermal conductance is approximately 2.4 nW/K, and the thermal conductivity is nearly 3500 Wm-1K-1 at room temperature for a SWNT of length 2.6 μm and diameter 1.7 nm. A subtle decrease in thermal conductivity steeper than 1/T is observed at the upper end of the temperature range, which is attributed to second-order three-phonon scattering between two acoustic modes and one optical mode. We discuss sources of uncertainty and propose a simple analytical model for the SWNT thermal conductivity including length and temperature dependence.

1,660 citations

Journal ArticleDOI
13 Apr 2012-Science
TL;DR: It is found that the skyrmion can magnetically induce electric polarization in an insulating chiral-lattice magnet Cu2OSeO3 through Lorentz transmission electron microscopy and magnetic susceptibility measurements.
Abstract: A magnetic skyrmion is a topologically stable particle-like object that appears as a vortex-like spin texture at the nanometer scale in a chiral-lattice magnet. Skyrmions have been observed in metallic materials, where they are controllable by electric currents. Here, we report the experimental discovery of magnetoelectric skyrmions in an insulating chiral-lattice magnet Cu(2)OSeO(3) through Lorentz transmission electron microscopy and magnetic susceptibility measurements. We find that the skyrmion can magnetically induce electric polarization. The observed magnetoelectric coupling may potentially enable the manipulation of the skyrmion by an external electric field without losses due to joule heating.

1,146 citations

Journal ArticleDOI
TL;DR: In this paper, a superconducting transition edge sensor is proposed, where the temperature of a superconding film is held constant by feeding back to its position on the resistive transition edge.
Abstract: A novel type of superconducting transition edge sensor is proposed. In this sensor, the temperature of a superconducting film is held constant by feeding back to its position on the resistive transition edge. Energy deposited in the film is measured by a reduction in the feedback Joule heating. This mode of operation should lead to substantial improvements in resolution, linearity, dynamic range, and count rate. Fundamental resolution limits are below ΔE=√kT2C, which is sometimes incorrectly referred to as the thermodynamic limit. This performance is better than any existing technology operating at the same temperature, count rate, and absorber heat capacity. Applications include high resolution x‐ray spectrometry, dark matter searches, and neutrino detection.

714 citations

Journal ArticleDOI
TL;DR: In this article, a 1D electrochemical, lumped thermal model is used to explore pulse power limitations and thermal behavior of a 6Ah, 72 cell, 276 V nominal Li-ion hybrid-electric vehicle (HEV) battery pack.

643 citations

Journal ArticleDOI
27 Mar 2009-Science
TL;DR: This work has demonstrated an efficient edge-reconstruction process, at the atomic scale, for graphitic nanoribbons by Joule heating, which involves point defect annealing and edge reconstruction.
Abstract: Graphene nanoribbons can exhibit either quasi-metallic or semiconducting behavior, depending on the atomic structure of their edges. Thus, it is important to control the morphology and crystallinity of these edges for practical purposes. We demonstrated an efficient edge-reconstruction process, at the atomic scale, for graphitic nanoribbons by Joule heating. During Joule heating and electron beam irradiation, carbon atoms are vaporized, and subsequently sharp edges and step-edge arrays are stabilized, mostly with either zigzag- or armchair-edge configurations. Model calculations show that the dominant annealing mechanisms involve point defect annealing and edge reconstruction.

626 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023396
2022765
2021486
2020496
2019475
2018457