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

Fixed bias, Fixed bias (base bias): Diagram: Fixed bias (Base ...

Fixed bias (base bias): Diagram: Fixed bias (Base bias) This type of biasing is also known as  base bias . In the instance above figure, the single power source (

Explain the suitability of aluminium, Explain the suitability of aluminium ...

Explain the suitability of aluminium  that is used as electrical conducting materials. Aluminium : Conductors are appropriate for ambient and very high temperature. Use of alu

Principles for implementation of strategy in organization, Principles for I...

Principles for Implementation of Strategy in an Organization Organization required focusing on five principles for the successful implementation of strategy. Organizations wil

Determine efficiency on diffrent load cycle, Q. A 75-kVA transformer has an...

Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:

Single phase half wave controlled rectifier , Single Phase Half wave contro...

Single Phase Half wave controlled Rectifier In half  wave  rectification either  the positive or negative half  of the ac wave is  passed while  the other  half is blocked. Be

Role of consumers in distribution reform, Role of Consumers in Distribution...

Role of Consumers in Distribution Reform In the reforms procedure, mandatory metering for all consumers is being implemented.  Consumers should implement this measure. Public

Electrical machine -i, What are the causes of sparking in the commutator? E...

What are the causes of sparking in the commutator? Explain the methods to reduce the sparking in the commutator?

Cross-subsidy and multi-year tariff - electricity policies, Cross-subsidy:...

Cross-subsidy: The policy gives clarity on determination of cross-subsidy and additional surcharges for open access to consumers and lays down a timeframe for rationalization

Multiplexer, design a 32:1 multiplexer using two 16:1 multiplexer

design a 32:1 multiplexer using two 16:1 multiplexer

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