Effective mass, Electrical Engineering

Assignment Help:

Effective Mass

  • The electrons' "wave-particle" motion in a lattice is not the same as that for a free electron, because of the interaction with the periodic potential of the lattice.
  • To still be able to treat these particles as "free", the rest mass has to be altered to take into account the influence of the lattice.
  • The calculation of effective mass takes into account the shape of the energy bands in three-dimensional (3D) k-space, taking appropriate averages over the various energy bands.
  • The effective mass of an electron in a band with a given (E,k) relation is given by

 

                               Mx = [h/(2π)]2 / d2E/dk2         


Related Discussions:- Effective mass

Metal–oxide–semiconductor structure, Metal-Oxide-Semiconductor Structure ...

Metal-Oxide-Semiconductor Structure A traditional metal-oxide-semiconductor abbreviated as MOS structure is acquired by growing a layer of silicon dioxide (SiO 2 ) on top of

Ral rotate accumulator left through carry instruction , RAL Rotate Accumula...

RAL Rotate Accumulator Left Through Carry Instruction This  instruction rotates the content  of the accumulator  towards left by one bit. The D 0 bit moves to D 1   bit moves

Explain a tube well, Q. Explain a Tube Well? Method of restoring or inc...

Q. Explain a Tube Well? Method of restoring or increasing the capacity of tube well is known as developing a Tube Wells. This is done to eliminate bridging of fine particles on

Define the parity with respect to serial communication, With respect to ser...

With respect to serial communication define the parity. Besides the synchronization given by the use of start and stop bits, an additional bit termed as a parity bit may opt

Explain temperature dependency in conductors, Explain temperature dependenc...

Explain temperature dependence of electrical conductivity and resistivity in conductors. When the temperature is increased, there is a greater thermal motion in atoms that redu

Explain the working of direct memory access controller, Explain the various...

Explain the various modes in which DMAC works. Working of Direct memory access controller: The modes of operation has demand mode, block mode, single mode and cascade mode.

Radio over Fiber, I need to get a summary for a radio over fiber paper that...

I need to get a summary for a radio over fiber paper that I have , the summary need to be on the following format: abstract, introduction,methodology,results, conclusion and refere

Residential wiring and safety considerations, Q. Residential wiring and saf...

Q. Residential wiring and safety considerations? Residential electric power service commonly consists of a three-wire ac system supplied by the local power company. A distribut

Explain the working of a bootstrap sweep generator, Q. Use necessary circui...

Q. Use necessary circuit and waveforms to explain the working of a Bootstrap sweep generator The bootstrap circuit illustrated in figure given below is a commonly used method f

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd