Mean Free Path of Electrons in Phonon Calculator

In physics, a phonon is an aggregate excitation in periodic, versatile plan of particles in dense matter, for example, solids and a few fluids. The energy helped by a phonon at a point is chosen by where it has had its last impact. So phonons originating from the high temperature end bring more energy than those originating from the low temperature end. Calculate the mean free path in phonon from the known volume, thermal conductivity, lattice heat capacity and effective sound speed.

Calculate the Mean Free Path of Electrons in Phonon

volume
W/mK
m/s

In physics, a phonon is an aggregate excitation in periodic, versatile plan of particles in dense matter, for example, solids and a few fluids. The energy helped by a phonon at a point is chosen by where it has had its last impact. So phonons originating from the high temperature end bring more energy than those originating from the low temperature end. Calculate the mean free path in phonon from the known volume, thermal conductivity, lattice heat capacity and effective sound speed.

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Formula:

l = 3Vλ / Cvvs Where, l = Mean Free Path of Electrons in Phonon V = Volume λ = Thermal Conductivity Cv = Lattice Heat Capacity vs = Effective Sound Speed

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