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Thermal phase transitions of supersolids in the extended Bose-Hubbard model
Thermal phase transitions extended Bose-Hubbard model
2010/11/18
We investigate numerically the finite-temperature phase diagrams of the extended Bose-Hubbard
model in a two-dimensional square lattice. In particular, we focus on the melting of supersolid
phases o...
Landauer vs. Boltzmann and Full Dispersion vs. Debye Model Evaluation of Lattice Thermal Conductivity
Landauer vs. Boltzmann Debye Model Evaluation Lattice Thermal Conductivity
2010/11/23
Using a full dispersion description of phonons, the thermal conductivities of bulk Si and Bi2Te3 are evaluated using a Landauer approach and related to the conventional approach based on the Boltzmann...
Tunable Thermal Transport and Mechanical Properties in Strained Graphene Nanoribbons
Tunable Thermal Transport Strained Graphene Nanoribbons
2010/11/22
We study the effects of stress and strain on thermal transport and mechanical properties
of armchair and zigzag graphene nanoribbons (AGNR and ZGNRs) using non-equilibrium
molecular dynamics simulat...
Influence of Thermal Conductive Material on the Activation Energy of Amorphous Silicon Thin Films
Thermal Conductive Material Activation Energy
2010/4/19
The activation energy of amorphous silicon thin films are usually measured by placing the thin film sample on a heating surface and monitoring the change in the dark conductivity as a function of temp...
Electronic and Lattice Thermal Conductivity of Bi1-x Sbx and Ag-Sb-Te Systems
Lattice Thermal Conductivity Electronic Bi1-x Sbx
2010/4/15
An investigation of the electronic (\alephe) and lattice (\alephL) parts of the thermal conductivity for samples of Bi1-x Sbx (0,02 < X < 0,12) and system of Ag-Sb-Te was carried out in the temperatur...