350 citations · 899 across the 9 of their papers we have counts for
9 papers
Vibrational mean free paths and thermal conductivity of amorphous silicon from non-equilibrium molecular dynamics simulations
K. Sääskilahti, J. Oksanen, J. Tulkki +2
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…
Spectral mapping of heat transfer mechanisms at liquid-solid interfaces
K. Sääskilahti, J. Oksanen, J. Tulkki +1
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 exp…
Nonequilibrium phonon mean free paths in anharmonic chains
K. Sääskilahti, J. Oksanen, S. Volz +1
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 co…
Frequency-dependent phonon mean free path in carbon nanotubes from non-equilibrium molecular dynamics
K. Sääskilahti, J. Oksanen, S. Volz +1
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 i…
Role of anharmonic phonon scattering in the spectrally decomposed thermal conductance at planar interfaces
K. Sääskilahti, J. Oksanen, J. Tulkki +1
Detailed understanding of vibrational heat transfer mechanisms between solids is essential for the efficient thermal engineering and control of nanomaterials. We investigate the fr…
Quantum Langevin equation approach to electromagnetic energy transfer between dielectric bodies in an inhomogeneous environment
K. Sääskilahti, J. Oksanen, J. Tulkki
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…
Thermal balance and quantum heat transport in nanostructures thermalized by local Langevin heat baths
K. Sääskilahti, J. Oksanen, J. Tulkki
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 transfe…
Thermal conduction and interface effects in nanoscale Fermi-Pasta-Ulam conductors
K. Sääskilahti, J. Oksanen, R. P. Linna +1
We perform classical non-equilibrium molecular dynamics simulations to calculate heat flow through a microscopic junction connecting two larger reservoirs. In contrast to earlier w…
Local Semiconducting Transition in Armchair Carbon Nanotubes: The Effect of Periodic Bi-site Perturbation on Electronic and Transport Properties of Carbon Nanotubes
M. J. Hashemi, K. Sääskilahti, M. J. Puska
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 b…