Cu has a mass density of 8.95 g/cm³, atomic weight of 63.55 g/mol and an electron resistivity of 1.55 x 10° Qm at room temperature. Assuming that the effictive mass is equal to normal electron mass calculate: (a) The concentation of the conduction electrons. (b) The mean free lifetime. (c) The Fermi energy.
Cu has a mass density of 8.95 g/cm³, atomic weight of 63.55 g/mol and an electron resistivity of 1.55 x 10° Qm at room temperature. Assuming that the effictive mass is equal to normal electron mass calculate: (a) The concentation of the conduction electrons. (b) The mean free lifetime. (c) The Fermi energy.
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![Cu has a mass density of 8.95 g/cm3, atomic weight of 63.55 g/mol and an electron resistivity of 1.55 x
10° Qm at room temperature. Assuming that the effictive mass is equal to normal electron mass
calculate:
(a) The concentation of the conduction electrons.
(b) The mean free lifetime.
(c) The Fermi energy.
(d) The Fermi velocity.
(e) The mean free path at the Fermi level.
NA (Avogadro number)= 6.023 ×10²3 mol1
K (Boltzmann constant)= 1.38 x 10-23 JK1
e (elementray charge)= 1.60217662 × 10 19 coulombs
m (electron mass)3 9.109 × 10" kg
ħ(Planck constant) = 1.0545 × 10-34 J. s
1J= 6.241 x 1018 eV](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2c568f51-4ab4-493e-b1cc-1cf6ccc50744%2F98293cff-6f3e-4ea1-821b-b404a8c1c38d%2Fgmfkoh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Cu has a mass density of 8.95 g/cm3, atomic weight of 63.55 g/mol and an electron resistivity of 1.55 x
10° Qm at room temperature. Assuming that the effictive mass is equal to normal electron mass
calculate:
(a) The concentation of the conduction electrons.
(b) The mean free lifetime.
(c) The Fermi energy.
(d) The Fermi velocity.
(e) The mean free path at the Fermi level.
NA (Avogadro number)= 6.023 ×10²3 mol1
K (Boltzmann constant)= 1.38 x 10-23 JK1
e (elementray charge)= 1.60217662 × 10 19 coulombs
m (electron mass)3 9.109 × 10" kg
ħ(Planck constant) = 1.0545 × 10-34 J. s
1J= 6.241 x 1018 eV
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