Using the lattice constant of iron r = 2.87 , and assuming the spins are parallel and
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Using the lattice constant of iron r = 2.87 Å, and assuming the spins are parallel and aligned along the same axis, estimate J for the interaction (10.8.1). Then estimate the interaction J for iron using Tc = 2Jz/kB as defined in Section 10.3, assuming z = 8 for a bcc crystal, and knowing the Curie point of iron of 770° C = 1043 K. How do the two values compare?
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Let 00 1 Then the vector products in the bracket in Eq 10...View the full answer
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