Physical Properties

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1、Mater.Sci.&Met.,PartIIPHYSICALPROPERTIESC5-1C5-PhysicalPropertiesDrP.D.BristoweLecture1:Introductiontoelectronsinsolids.Characteristicsolidtypes.Bondsandbands.Influenceofelectronsonphysicalproperties.Lecture2:Reviewoffreeelectrontheory:waveequation,wavevectorsandk-space,energylevels,Fer

2、mienergy,densityofstates,Fermi-Diracdistributionfunction.Successesandfailuresoffreeelectrontheory.Lecture3:Electronsincrystals:Bloch'stheorem,energybandsandgaps,interpretationintermsofBragg'slaw.TheelectronenergydispersionE(k)inone-dimension.Lecture4:ZoneschemerepresentationsofE(k).Bril

3、louinzonesintwoandthreedimensions.Thenumberofallowedstatesinabandandthedistinctionbetweenmetalsandinsulators.Bandoverlap.Lecture5:Fermisurfacesforfreeandnearly-freeelectronsintwoandthree-dimensions.TheFermisurfaceofcopper.Densityofstatesfornearlyfreeelectrons.Relationshipbetweenelectron

4、concentrationandcrystalstructure.Phasestability.Lecture6:Cohesioninsimpleandtransitionmetals.Thetight-bindingmethod.TheFriedeld-bandmodel.Cohesionandstabilityofmetallicalloys.Jonestheory.Lecture7:Electrontransport,effectivemass,electricalresistivityofmetals,electronmeanfreepath,impurity

5、andphononscattering.Transportacrossinterfaces.Lecture8:Theoriesofopticalbehaviour.Theopticalconstants:refractiveindexandextinctioncoefficient.Reflectivityofmetalsandinsulators.TheHagen-Rubensequation.Lecture9:Bandstructuretheoryofabsorptionandreflectionprocessesinmaterials.Interbandandi

6、ntrabandtransitions.Colourofbulkmetals,insulatorsandsemiconductors.Lecture10:Opticalemissionprocesses.Thermoluminescence,photoluminescenceandelectroluminescence.Optoelectronicmaterialsanddevices:light-emittingdiodesandsemiconductorlasers.Lecture11:Thermalpropertiesofmetalsandinsulators.

7、Theoryofcrystalvibrations.Normalmodesinmonatomicanddiatomiclattices.Theacousticalandopticalbranchesofthefrequencydispersionrelation.Lecture12:Normalmodesandphonons.Thephonondensityofstates.Theheatcapacityandthermalconductivityofmetalsandinsulators.BooklistR.E.Hummel,ElectronicP