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effective mass parameters: Material Electron Effective Mass Si 1.08mo Ge 0.55mo GaAs 0.067mo Determine the number of quantum states fer unit volume (3D mate- rial)

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effective mass parameters: Material Electron Effective Mass Si 1.08mo Ge 0.55mo GaAs 0.067mo Determine the number of quantum states fer unit volume (3D mate- rial) #/cm" at T=300K for Si, Ge, and GaAs at an energy of E = KT. What do you observe about the relationship between effective mass and the # of states

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