Alloying, Physics

Assignment Help:

Alloying: When an impurity atom of a different size compared to the host atom is placed into the crystal lattice, the impurity atom distorts the resin around it, either by pushing the host atoms farther away, or by pulling them in, as depicted. The cross section that scatters the electron is the lattice region that has been elasticity distorted by the impurity (the impurity atom itself and its neighbouring host atoms), so that in this zone, the electron suddenly experiences a force due to sudden change in PE. This region has a large scattering event from impurity only. We define τt as the mean time between scattering events arising from thermal vibrations alone and as the mean time between scatterings events arising from collisions with impurity alone. In, general an electron may be scattered by both processes, so effective mean time τ between any which scattering events will be less than the individual scattering time. 

 

 


Related Discussions:- Alloying

Ammeter, why we can''t reduce the range of AN AMMETER ?

why we can''t reduce the range of AN AMMETER ?

Quantum mechanics, how to calculate wave function of particle?

how to calculate wave function of particle?

..youngs modulus of string, A string of cross section 2cm2 is doubled in le...

A string of cross section 2cm2 is doubled in length by the application of a longitudinal force 2*10 5 dynes. The youngs modulus is

Determine potential difference between two points, If 10 joules of energy a...

If 10 joules of energy are required to move 5 coulombs of charge between two points, the potential difference between the two points is equal to how many volts? Ans: If 10 j

#rc couple., explain frequency response curve

explain frequency response curve

Energy transformation for a pendulum, Energy Transformation for a Pendulum ...

Energy Transformation for a Pendulum Because there are no external forces doing work and the total mechanical energy of the pendulum bob is conserved. The conservation of mecha

Optics, when dispersion is happening from a prism, the colors are separated...

when dispersion is happening from a prism, the colors are separated out. do each of these colors move with different velocities to keep frequency constant? practically is it possib

Calculation of speed of light, how to calculate speed of light?  The sp...

how to calculate speed of light?  The speed of light in vacuum, normally denoted by symbol c, is a universal physical constant which is very important in various areas of physi

Expression for the frequencies of coupled oscillatory system, Two similar s...

Two similar simple pendulums each of length ‘l' and mass ‘m' are coupled by a spring of force constant ‘k'. Write down the expression for the normal mode frequencies of the coupled

Compton effect and compton scattering, Q.   Explain how Compton scattering ...

Q.   Explain how Compton scattering confirms the quantum nature of radiation. OR What is "Compton Effect"? Deduce an expression for shift in wavelength of scattered X ray

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