Density of energy state, Physics

Q. What is the density of energy states in metals? Obtain an expression for the density of states for free electron gas in metals.

 

Ans. Density of energy state is defined as the number of available energy states per unit energy range per unit volume.

To calculate density of energy state, let us introduce a 3 D space defined by. Each point in this space would represent an energy state and is associated with a volume element of one unity. Now if we draw a sphere of radius n in this space then each energy state defined by

The factor 1/8 accounts for the fact that only positive integers are allowable and thus only one octant of the sphere is available. 

 

 

Posted Date: 7/11/2012 3:17:04 AM | Location : United States







Related Discussions:- Density of energy state, Assignment Help, Ask Question on Density of energy state, Get Answer, Expert's Help, Density of energy state Discussions

Write discussion on Density of energy state
Your posts are moderated
Related Questions
A particle executes linear some with an amplitude if 2 cm.when the particle is at 1cm from the mean position the magnitude of its velocity is equal to that of its acceleration.Then


Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called brass. It is widely used as a current carrying and structural material in switches and plugs etc. Propertie

Double-slit experiment (T. Young; 1801): A popular experiment which illustrates the wave nature of light (and indeed of other particles). Light is passed out from a small sour

Explain Cement concrete Cement concrete is a mixture of cement, sand, pebbles or crushed rock and water, which where placed in the skeleton of forms and permitted to cure becom

REST: A body is said to be at rest if it does not alter its position with respect to its surroundings.

how would the results change if the angle of the third load in second experiment increased ? state the differences

Newton''s rings are formed between a spherical lens surface and an optical flat. If the tenth bright ring of green light (545.1 nm) is 7.89 mm in diameter, what is the radius of cu

A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 440 Hzsource of sound. The microphone vibrates up and down in s

A particle moving in a straight line with constant accelaration is having initial velocity of 10 m/s. After some time, the velocity becomes 30 m/s. Find the velocity of particle at