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PH-3256 Physics for Information Science

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ELECTRICAL PROPERTIES OF MATERIALS

Classical free electron theory

Expression for electrical conductivity

Thermal conductivity expression

Particle in a three dimensional box

Fermi Dirac statistics

Density of energy states

Electron in periodic potential

Energy bands in solids

tight binding approximation

Electron effective mass

SEMICONDUCTOR PHYSICS

Intrinsic Semiconductors

direct and indirect band gap semiconductors

Carrier concentration in intrinsic semiconductors

extrinsic semiconductors

Carrier concentration in N type

Carrier concentration P type semiconductors

Variation of carrier concentration with temperature

variation of Fermi level with temperature and impurity concentration

random motion,drift, mobility and diffusion

Hall effect and devices

MAGNETIC PROPERTIES OF MATERIALS

Magnetic dipole moment

atomic magnetic moments

magnetic permeability and susceptibility

Ferromagnetism origin and exchange interaction

saturation magnetization and Curie temperature

Hard and soft magnetic materials

Magnetic principle in computer data storage

Magnetic hard disc (GMR sensor).

OPTICAL PROPERTIES OF MATERIALS

Classification of optical materials

carrier generation and recombination processes

Absorption emission and scattering of light in metals

insulators and semiconductors

photo current in a P N diode

Optical data storage techniques

NANODEVICES AND QUANTUM COMPUTING

quantum wells ,wires , dots

band gap of nanomaterials

Single electron phenomena: Coulomb blockade

resonant Tunneling diode

single electron transistor

quantum cellular automata

Quantum system for information processing

quantum bits or qubits