which the solid must be cooled so that more than \( 60 \% \) of the atom are polarized with their magneti moments parallel to the magneti field is given by (Here \( k \) i Boltzmann constant) (1) \( T=\frac{2 \mu B}{k \ln 3} \) (2) \( \mathrm{T}=\frac{\mu \mathrm{B}}{\mathrm{k} \ln 3} \)
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In a magnetic field B, the energy of an atom with magnetic moment μ in a state where the moment is parallel to the field is -μB, and the energy in a state where the moment is antiparallel is +μB. Show more…
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