= Emanuel Maxwell
{c}
{tag=Physicist}
An experimental <physicist> who reported the <superconducting isotope effect> in <Mercury> in 1950. He compared natural <Mercury> with isotopically enriched samples, detected the destruction of <superconductivity> magnetically and extrapolated the critical-field curve to zero <magnetic field> to obtain the transition <temperature>. The dependence on isotopic <mass> showed that changing the <atomic nucleus> could alter <superconductivity>, motivating theories involving the motion of the <chemical atoms> in a <crystal>.<Isotope Effect in the Superconductivity of Mercury by Emanuel Maxwell>[p. 477: sample preparation, magnetic detection and extrapolation of the critical-field curve]{ref}
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