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RESEARCH PRODUCT
Ballistic phonon transport in dielectric membranes
Thomas KühnIlari Maasiltasubject
PhysicsPhysics::Biological PhysicsNuclear and High Energy PhysicsCondensed matter physicsPhononMembrane thicknessDielectricEffective radiated powerElasticity (physics)Quantitative Biology::Cell BehaviorQuantitative Biology::Subcellular ProcessesMembraneBallistic conductionRadiator (engine cooling)Instrumentationdescription
We have calculated the ballistic phononic heat transport in dielectric membranes as a function of radiator temperature and membrane thickness. The phonon modes of such membranes are known as Lamb-modes from elasticity theory. The striking result is that, for a fixed temperature, the radiated power first decreases with decreasing membrane thickness, but then develops a minimum when the transition to two dimensionality is reached. Further decrease of the membrane thickness in the 2D limit leads to increasing radiated power.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-04-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |