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of 62
pro vyhledávání: '"Sääskilahti, K."'
The frequency-dependent mean free paths (MFPs) of vibrational heat carriers in amorphous silicon are predicted from the length dependence of the spectrally decomposed heat current (SDHC) obtained from non-equilibrium molecular dynamics simulations. T
Externí odkaz:
http://arxiv.org/abs/1605.08925
Publikováno v:
Phys. Rev. E 93, 052141 (2016)
Thermal transport through liquid-solid interfaces plays an important role in many chemical and biological processes, and better understanding of liquid-solid energy transfer is expected to enable improving the efficiency of thermally driven applicati
Externí odkaz:
http://arxiv.org/abs/1512.05914
Publikováno v:
Phys. Rev. B 92, 245411 (2015)
Harnessing the power of low-dimensional materials in thermal applications calls for a solid understanding of the anomalous thermal properties of such systems. We analyze thermal conduction in one-dimensional systems by determining the frequency-depen
Externí odkaz:
http://arxiv.org/abs/1510.00247
Publikováno v:
Phys. Rev. B 91, 115426 (2015)
Owing to their long phonon mean free paths (MFPs) and high thermal conductivity, carbon nanotubes (CNTs) are ideal candidates for, e.g., removing heat from electronic devices. It is unknown, however, how the intrinsic phonon MFPs depend on vibrationa
Externí odkaz:
http://arxiv.org/abs/1411.2838
Publikováno v:
Phys. Rev. B 90, 134312 (2014)
Detailed understanding of vibrational heat transfer mechanisms between solids is essential for the efficient thermal engineering and control of nanomaterials. We investigate the frequency dependence of anharmonic scattering and interfacial thermal co
Externí odkaz:
http://arxiv.org/abs/1405.3868
Publikováno v:
Phys. Rev. B 89, 134301 (2014)
Near-field and resonance effects have a strong influence on the nanoscale electromagnetic energy transfer, and detailed understanding of these effects is required for the design of new, optimized nano-optical devices. We provide a comprehensive micro
Externí odkaz:
http://arxiv.org/abs/1310.4677
Publikováno v:
Phys. Rev. E 88, 012128 (2013)
Modeling of thermal transport in practical nanostructures requires making trade-offs between the size of the system and the completeness of the model. We study quantum heat transfer in a self-consistent thermal bath setup consisting of two lead regio
Externí odkaz:
http://arxiv.org/abs/1303.5628
Publikováno v:
Phys. Rev. E 86, 031107 (2012)
We perform classical non-equilibrium molecular dynamics simulations to calculate heat flow through a microscopic junction connecting two larger reservoirs. In contrast to earlier works, we also include the reservoirs in the simulated region to study
Externí odkaz:
http://arxiv.org/abs/1202.0680
In carbon nanotubes, the most abundant defects, caused for example by irradiation or chemisorption treatments, are small perturbing clusters, i.e. bi-site defects, extending over both A and B sites. The relative positions of these perturbing clusters
Externí odkaz:
http://arxiv.org/abs/1101.0519
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