Altering Thermal Boundary Conductance in Al/Al2O3 and Al/Si Boundaries Using Ion Beam Radiation
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Jump to search filtersInfluence of anisotropy on thermal boundary conductance at solid interfaces
Physical Review B - Condensed Matter and Materials Physics
We investigate the role of anisotropy on interfacial transport across solid interfaces by measuring the thermal boundary conductance from 100 to 500 K across Al/Si and Al/sapphire interfaces with different substrate orientations. The measured thermal boundary conductances show a dependency on substrate crystallographic orientation in the sapphire samples (trigonal conventional cell) but not in the silicon samples (diamond cubic conventional cell). The change in interface conductance in the sapphire samples is ascribed to anisotropy in the Brillouin zone along the principal directions defining the conventional cell. This leads to resultant phonon velocities in the direction of thermal transport that vary nearly 40% based on crystallographic direction. © 2011 American Physical Society.
Effect of Interface Adhesion and Impurity Mass on Phonon Transport at Molecular Junctions
Abstract not provided.
On the Role of Optical Phonons in Thermal Boundary Conductance
Abstract not provided.
Contributions of anharmonic phonon interactions to thermal boundary conductance
Abstract not provided.
Assessment and Prediction of Thermal Transport Across Solid-SAM Junctions
Abstract not provided.
Effect of dislocation density on thermal boundary conductance across GaSb/GaAs interfaces
Applied Physics Letters
Abstract not provided.
Lattice mismatch model for predicting frequency-dependent phonon transmissivity across interfaces between dissimilar materials
Applied Physics Letters
Abstract not provided.
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