Výsledky vyhledávání - "Javier Bafaluy"

Observation of second sound in a rapidly varying temperature field in Ge

Autor: Claudio Melis, Lluc Sendra, F. X. Alvarez, Juan Sebastián Reparaz, Juan Camacho, Maria Isabel Alonso, Javier Bafaluy, Riccardo Rurali, Luis Alberto Pérez, Albert Beardo, Luciano Colombo, Miquel López-Suárez

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
Science Advances

Second sound is known as the thermal transport regime where heat is carried by temperature waves. Its experimental observation was previously restricted to a small number of materials, usually in rather narrow temperature windows. We show that it is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f26f864b872ef002245d84fc88a2da9e
https://doi.org/10.1126/sciadv.abg4677

Zobrazit plný text záznamu

Derivation of a hydrodynamic heat equation from the phonon Boltzmann equation for general semiconductors

Autor: Albert Beardo, F. Xavier Alvarez, Pol Torres, Lluc Sendra, Javier Bafaluy, Juan Camacho

Publikováno v: Physical Review B. 103

We present a formalism to solve the phonon Boltzmann transport equation (BTE) for finite Knudsen numbers that supplies a hydrodynamic heat transport equation similar to the Navier-Stokes equation for general semiconductors. This generalization of Fou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c687cbd7c39041eb63d98e7273176783
https://doi.org/10.1103/physrevb.103.l140301

Zobrazit plný text záznamu

A General and Predictive Understanding of Thermal Transport from 1D- and 2D-Confined Nanostructures : Theory and Experiment

Autor: Henry C. Kapteyn, Begoña Abad, F. Xavier Alvarez, Margaret M. Murnane, Lluc Sendra, Travis Frazer, Albert Beardo, Weilun Chao, Jorge N. Hernandez-Charpak, Javier Bafaluy, Joshua Knobloch, Juan Camacho

Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
ACS Nano
ACS nano, vol 15, iss 8

Altres ajuts: acords transformatius de la UAB Heat management is crucial in the design of nanoscale devices as the operating temperature determines their efficiency and lifetime. Past experimental and theoretical works exploring nanoscale heat transp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f29d12b92a4c1c5af4da88437c46ea4b
https://ddd.uab.cat/record/250442

Zobrazit plný text záznamu

Phonon hydrodynamics in frequency-domain thermoreflectance experiments

Autor: Albert Beardo, Timothy G. Myers, Juan Camacho, Javier Bafaluy, Lluc Sendra, F. X. Alvarez, Matthew G. Hennessy

Publikováno v: RECERCAT (Dipòsit de la Recerca de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)

The hydrodynamic heat transport equation with appropriate boundary conditions and ab initio calculated coefficients is validated by comparing the corresponding analytical and numerical solutions with frequency-domain thermoreflectance experimental me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f670561ccdf16d9c3d79af16febb33d6
https://doi.org/10.1103/physrevb.101.075303

Zobrazit plný text záznamu

Collective thermal transport in pure and alloy semiconductors

Autor: F. Xavier Alvarez, Xavier Cartoixà, Amr M. S. Mohammed, Javier Bafaluy, Alvar Torelló, Ali Shakouri, Juan Camacho, Pol Torres

Publikováno v: Physical Chemistry Chemical Physics. 20:6805-6810

Conventional models for predicting thermal conductivity of alloys usually assume a pure kinetic regime as alloy scattering dominates normal processes. However, some discrepancies between these models and experiments at very small alloy concentrations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::306b875ba49ea43aa177a3dcdf803116
https://doi.org/10.1039/c7cp07738f

Zobrazit plný text záznamu

Hydrodynamic Heat Transport in Compact and Holey Silicon Thin Films

Autor: Albert Beardo, Javier Bafaluy, Juan Camacho, Marc Calvo-Schwarzwälder, Pol Torres, Lluc Sendra, F. X. Alvarez, Timothy G. Myers

Publikováno v: Physical Review Applied. 11

The breakdown of Fourier's law in nanoscale thermal transport, which has become (ahem) a $h\phantom{\rule{0}{0ex}}o\phantom{\rule{0}{0ex}}t$ topic lately due to improvements in experimental precision, presents a serious problem for analysis of heat f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7976eceb67259f9e19a2144cc86f021f
https://doi.org/10.1103/physrevapplied.11.034003

Zobrazit plný text záznamu

Emergence of hydrodynamic heat transport in semiconductors at the nanoscale

Autor: Alvar Torelló, Amirkoushyar Ziabari, Juan Camacho, Xavier Cartoixà, A. Shakouri, Pol Torres, F. X. Alvarez, Javier Bafaluy

Publikováno v: Physical Review Materials. 2

Several recent experiments have demonstrated the failure of the Fourier heat equation in semiconductors at the nanoscale. We show that a generalized heat transport equation including a hydrodynamic term can explain three of these experiments on a sil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6e63f8db1514f157e49df97d9ba53d7
https://doi.org/10.1103/physrevmaterials.2.076001

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání