Výsledky vyhledávání - "Samuel Huberman"

On the emergence of heat waves in the transient thermal grating geometry

Autor: Chuang Zhang, Samuel Huberman, Lei Wu

Publikováno v: Journal of Applied Physics. 132:085103

The propagation of heat in the transient thermal grating geometry is studied based on phonon Boltzmann transport equation (BTE) in different phonon transport regimes. Our analytical and numerical results show that the phonon dispersion relation and t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81a9e1235a0d80128ff6dd2cc8a35f59
https://doi.org/10.1063/5.0102227

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Thermal transport exceeding bulk heat conduction due to nonthermal micro/nanoscale phonon populations

Autor: Gang Chen, Vazrik Chiloyan, Alexei Maznev, Keith A. Nelson, Samuel Huberman

Publikováno v: Prof. Gang Chen

While classical size effects usually lead to a reduced effective thermal conductivity, we report here that nonthermal phonon populations produced by a micro/nanoscale heat source can lead to enhanced heat conduction, exceeding the prediction from Fou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5915902e2f4252a320647ebd7e66504
https://hdl.handle.net/1721.1/125057

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Observation of second sound in graphite at temperatures above 100 K

Autor: Alexei Maznev, Ke Chen, Keith A. Nelson, Vazrik Chiloyan, R. A. Duncan, Samuel Huberman, Gang Chen, Bai Song, Zhiwei Ding

Publikováno v: arXiv

Wavelike thermal transport in solids, referred to as second sound, is an exotic phenomenon previously limited to a handful of materials at low temperatures. The rare occurrence of this effect restricted its scientific and practical importance. We dir

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Nanoscale transient gratings excited and probed by extreme ultraviolet femtosecond pulses

Publikováno v: Science Advances
Science Advances 5 (2019). doi:10.1126/sciadv.aaw5805
info:cnr-pdr/source/autori:Bencivenga F.; Mincigrucci R.; Capotondi F.; Foglia L.; Naumenko D.; Maznev A.A.; Pedersoli E.; Simoncig A.; Caporaletti F.; Chiloyan V.; Cucini R.; Dallari F.; Duncan R.A.; Frazer T.D.; Gaio G.; Gessini A.; Giannessi L.; Huberman S.; Kapteyn H.; Knobloch J.; Kurdi G.; Mahne N.; Manfredda M.; Martinelli A.; Murnane M.; Principi E.; Raimondi L.; Spampinati S.; Spezzani C.; Trovo M.; Zangrando M.; Chen G.; Monaco G.; Nelson K.A.; Masciovecchio C./titolo:Nanoscale transient gratings excited and probed by extreme ultraviolet femtosecond pulses/doi:10.1126%2Fsciadv.aaw5805/rivista:Science Advances/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:5

Spatially patterned extreme ultraviolet light pulses can be used for probing multiple dynamical processes at the nanoscale.
Advances in developing ultrafast coherent sources operating at extreme ultraviolet (EUV) and x-ray wavelengths allow the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc5cb781eea55b22255cacc44b68db7d
http://hdl.handle.net/11572/243842

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Unifying first principle theoretical predictions and experimental measurements of size effects on thermal transport in SiGe alloys

Autor: Lingping Zeng, Gang Chen, Eugene A. Fitzgerald, Samuel Huberman, Alexei Maznev, R. A. Duncan, Vazrik Chiloyan, Keith A. Nelson, Roger Jia

Publikováno v: Gand Chen

We demonstrate the agreement between first-principles calculations and experimental measurements of size effects in thermal transport in SiGe alloys without fitting parameters. Transient thermal grating (TTG) is used to measure the effect of the grat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8300d0f11eedadfd084773c28b90409b
http://arxiv.org/abs/1704.01386

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Bi-directional tuning of thermal transport in SrCoO

Autor: Qiyang, Lu, Samuel, Huberman, Hantao, Zhang, Qichen, Song, Jiayue, Wang, Gulin, Vardar, Adrian, Hunt, Iradwikanari, Waluyo, Gang, Chen, Bilge, Yildiz

Publikováno v: Nature materials. 19(6)

Unlike the wide-ranging dynamic control of electrical conductivity, there does not exist an analogous ability to tune thermal conductivity by means of electric potential. The traditional picture assumes that atoms inserted into a material's lattice a

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https://pubmed.ncbi.nlm.nih.gov/32094497

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Molecular engineered conjugated polymer with high thermal conductivity

Autor: Yanfei Xu, Jiawei Zhou, Gang Chen, Zhang Jiang, Elizabeth M. Y. Lee, Samuel Huberman, Bai Song, Karen K. Gleason, Xiaoxue Wang

Publikováno v: Science Advances

Molecular engineering of intra- and interchain interactions transforms polymers into good heat conductors.
Traditional polymers are both electrically and thermally insulating. The development of electrically conductive polymers has led to novel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1f6b7699b97fa04038c42425d011964
https://doi.org/10.1126/sciadv.aar3031

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