Pushing the boundaries of the thermal conductivity of materials
Pushing the boundaries of the thermal conductivity of materials
Pushing the boundaries of the thermal conductivity of materials
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Thermal <strong>conductivity</strong> and interface <strong>the</strong>rmal conductance<br />
• Both properties are difficult to understand and<br />
control because <strong>the</strong>y are integral properties.<br />
• For example, simplest case <strong>of</strong> <strong>the</strong>rmal<br />
<strong>conductivity</strong> where resistive scattering<br />
dominates<br />
Λ = 1/3∫ C(ω) v(ω) l(ω) dω<br />
C(ω) = heat capacity <strong>of</strong> phonon mode<br />
v(ω) = group velocity<br />
l(ω) = mean-free-path
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