Friday, December 15, 2017

B. Sc. part -III Semester-VI, Paper - XVI (Solid State Physics)

SHIVAJI UNIVERSITY KOLHAPUR
B. Sc. part -III (Physics) Revised Syllabus with effect from June, 2015
Semester-VI, Physics Paper - XVI
(Solid State Physics)
UNIT I
*     Crystal Structure:
1)    Crystalline and non crystalline solids
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2)    Space lattice,
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3)    Basis and crystal structure
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4)    Unit cell primitive and non-primitive,
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5)    Bravais lattices- space groups and crystal structure
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6)    Symmetry elements of cubic system
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7)    Miller indices
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8)    Relation between lattice constant
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9)    Interplaner spacing and Miller indices
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10) Simple crystal structures - Cubic (SC, BCC, FCC)
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11)  Hexagonal close packed (HCP) (with respect to coordination number, atomic radius, atoms per unit cell, packing fraction).
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UNIT II
*     X – Ray Diffraction by Crystals:
12)  Reciprocal lattice
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13)  Properties of reciprocal lattice
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14)  Bragg’s law in reciprocal Lattice ( Ewald’s construction),
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15)  Powder method of X- ray diffraction and analysis of cubic crystal structure.
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UNIT III
*     Lattice vibrations:
16)  Elastic vibrations of linear one dimensional mono-atomic lattice,
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17)  Expression for frequency and dispersion curve,
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18)  Elastic vibrations of linear one dimensional diatomic lattice –optical and acoustical Excitations in ionic crystals,
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19)  Experimental determination of dispersion relations.
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UNIT IV
*     Free Electron Theory of Metals and Band Theory of Solids:
20)  Somerfield’s free electron model for electrical conductivity of metals, Fermi-Dirac distribution,
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21)  Origin of energy bands- valence band,
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22)  Conduction band, Band gap energy,
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23)  Distinction between metals, Semiconductors and insulators,
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24)  Hall Effect-Hall voltage and Hall Coefficient.
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*     Solid State Device:
25)  Timer (IC555)-Block diagram, Function of each block
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26)  Pin configuration
Applications-A stable, Mono stable and Bi stable multivibrator.
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