PH2161 ENGINEERING PHYSICS – II Syllabus

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UNIT I CONDUCTING MATERIALS
Conductors – classical free electron theory of metals – Electrical and thermal
conductivity – Wiedemann – Franz law – Lorentz number – Draw backs of classical
theory – Quantum theory – Fermi distribution function – Effect of temperature on
Fermi Function – Density of energy states – carrier concentration in metals.
UNIT II SEMICONDUCTING MATERIALS
Intrinsic semiconductor – carrier concentration derivation – Fermi level – Variation of
Fermi level with temperature – electrical conductivity – band gap determination –
extrinsic semiconductors – carrier concentration derivation in n-type and p-type
semiconductor – variation of Fermi level with temperature and impurity concentration
– compound semiconductors – Hall effect –Determination of Hall coefficient –
Applications.
UNIT III MAGNETIC AND SUPERCONDUCTING MATERIALS
Origin of magnetic moment – Bohr magneton – Dia and para magnetism – Ferro
magnetism – Domain theory – Hysteresis – soft and hard magnetic materials – anti –
ferromagnetic materials – Ferrites – applications – magnetic recording and readout –
storage of magnetic data – tapes, floppy and magnetic disc drives.
Superconductivity : properties - Types of super conductors – BCS theory of
superconductivity(Qualitative) - High Tc superconductors – Applications of
superconductors – SQUID, cryotron, magnetic levitation.
UNIT IV DIELECTRIC MATERIALS
Electrical susceptibility – dielectric constant – electronic, ionic, orientational and
space charge polarization – frequency and temperature dependence of polarisation –
internal field – Claussius – Mosotti relation (derivation) – dielectric loss – dielectric
breakdown – uses of dielectric materials (capacitor and transformer) – ferroelectricity
and applications.
UNIT V MODERN ENGINEERING MATERIALS
Metallic glasses: preparation, properties and applications.
Shape memory alloys (SMA): Characteristics, properties of NiTi alloy, application,
advantages and disadvantages of SMA
Nanomaterials: synthesis –plasma arcing – chemical vapour deposition – sol-gels –
electrodeposition – ball milling - properties of nanoparticles and applications.
Carbon nanotubes: fabrication – arc method – pulsed laser deposition – chemical
vapour deposition - structure – properties and applications.
TOTAL : 45 PERIODS
TEXT BOOKS:
1. Charles Kittel ‘ Introduction to Solid State Physics’, John Wiley & sons,7th edition, Singapore (2007)
2. Charles P. Poole and Frank J.Ownen, ’Introduction to Nanotechnology’,
Wiley India(2007) (for Unit V)
REFERENCES:
1. Rajendran, V, and Marikani A, ‘Materials science’Tata McGraw Hill
publications, (2004) New delhi.
2. Jayakumar, S. ‘Materials science’, R.K. Publishers, Coimbatore, (2008).
3. Palanisamy P.K, ‘Materials science’, Scitech publications(India) Pvt. LTd.,
Chennai, second Edition(2007)
4. M. Arumugam, ‘Materials Science’ Anuradha publications, Kumbakonam,
(2006).