Bonding forces and energy bands in solids, Electrical Engineering

Bonding Forces and Energy Bands in Solids

  • Electrons are controlled to sets of discrete energy levels in atoms, with large gaps among them in which no energy state is obtainable for the electron to occupy.
  • Electrons in solids as well are restricted to certain energies and are not permitted at other energies.
  • Variation → in the solid, the electron has a range (or band) of available energies.
  • The discrete energy levels of the isolated atom spread into bands of energies in the solid since
  1. In the solid, the wave functions of electrons in neighboring atoms overlap, so it influences the potential energy term and the boundary conditions in the Schrödinger equation, and different energies are acquired in the solution, and
  2. An electron is not essentially localized at a specific atom.
  • The affect of neighboring atoms on the energy levels of a specific atom can be treated as a small perturbation, giving rise to shifting and splitting of energy states into energy bands.
Posted Date: 1/11/2013 2:52:06 AM | Location : United States







Related Discussions:- Bonding forces and energy bands in solids, Assignment Help, Ask Question on Bonding forces and energy bands in solids, Get Answer, Expert's Help, Bonding forces and energy bands in solids Discussions

Write discussion on Bonding forces and energy bands in solids
Your posts are moderated
Related Questions
what is that mean and explain

Explain the basic working principle of ultrasonic machining with the help of diagram. What are the different kinds of tool materials explain, tool holders are used in ultrasonic


Forward and Reverse-active in Bipolar Junction Transistor: Forward-active (or simply, active): The base-collector junction is reverse biased and base-emitter junction is

find the net value of power if an average value of energy is assumed to be $0.05/KWh, the capacity value is $30/kw-yr ...

Q. Effect of feedback on stability? Let us consider the direct transfer function of the unstable first-order system of Figure (a). The transfer function is given by whe

Lack of Accountability - High Technical Usage In huge, complex and widespread ST&D networks such as ours, the subsequent factors pose problems in arriving at reasonable estima

1.       In ordinary photography, each part contains information of the original object separately and in case some part of the object is destroyed then the information of that par


Logically AND the contents of memory Contents of memory  location,  whose address is specified by HL register pair are logically AND with the  contents  of the accumulator. The