- #1
Tom Weaver
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Consider a two-dimensional ionic crystal with a primitive hexagonal lattice. The energy needed to create a Frenkel defect pair is 10eV, and Schottky defect formation costs 8eV.
Calculate the concentration of vacancies and interstitials in the crystal at 300 K, assuming that all defects are intrinsic.
n/N=e-(Edef/kbT)
Where: n = number of defects
N = number of atoms in the crystal
Edef = defect creation energy
kb = Boltzman's constant
T = temperature
I've tried using 10eV and 8eV as the defect creation energy however this equals to an answer smaller than *10-100, unsure how to progress.
Thanks in advance!
Calculate the concentration of vacancies and interstitials in the crystal at 300 K, assuming that all defects are intrinsic.
n/N=e-(Edef/kbT)
Where: n = number of defects
N = number of atoms in the crystal
Edef = defect creation energy
kb = Boltzman's constant
T = temperature
I've tried using 10eV and 8eV as the defect creation energy however this equals to an answer smaller than *10-100, unsure how to progress.
Thanks in advance!