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

Variable capacitor, These capacitors are used as tuning capacitors in radio...

These capacitors are used as tuning capacitors in radio receivers. The two requirements of these capacitors are: (1)         Frequency stability (2)         Preventing micro

For a plane mirror that is true of the normal, Question: For a plane m...

Question: For a plane mirror that is true of the normal? Feedback: The usual is an imaginary line that passes through the point of incidence and is perpendicular to

Work and energy, if 2.13*106J of work must be done on a roller_coaster car ...

if 2.13*106J of work must be done on a roller_coaster car to move it 3.00*102m,how large is the net force acting on the car ?

Calculate the velocity , An object of mass 4 kg is moving on a smooth horiz...

An object of mass 4 kg is moving on a smooth horizontal surface with a velocity of 10 m/s in rightward direction. A horizontal force F which shows in the above figure was applied o

Conservation of angular momentum, Conservation of angular momentum Th...

Conservation of angular momentum The overall angular momentum of any closed system remains constant. There are many other laws which deal with particle physics, as conserv

What is the moment of inertia about the basketball, A basketball player spi...

A basketball player spins a basketball with a radius of 15 cm on his finger. The mass of the ball is 0.75 kg. What is the moment of inertia about the basketball?

Assignment topic.., How we can increase the data input from 4 to 8 of multi...

How we can increase the data input from 4 to 8 of multipluxer and data outputs from 4to 8 of demultipluxer? Properly draw circuit diagram

Describe capacitance or capacity of a conductor, Describe capacitance or ca...

Describe capacitance or capacity of a conductor and illustrate the principle of capacitor. Derive the mathematical equation for equivalent capacitance (Capacity) When a number o

Universal gravitation, Object A attracts object B with a gravatational forc...

Object A attracts object B with a gravatational force of 10 newtons from a given distance. If the distance between the two objects is doubled, what is the changed force of attracti

Rainstorm, why wouldn''t you be electrocuted if you walked under an electri...

why wouldn''t you be electrocuted if you walked under an electric transmission line during a rainstorm?

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