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The phase boundary for the high-pressure superconducting α^' phase of cerium has been determined from 77 to 480^∘{}K from observations of the resistance anomaly which occurs at the α→α^' transition. The observed transition pressure at 297^∘{}K is 55.8±{}0.5 kbar, varying linearly with temperature with ∂P∂T=-34.9 bar/deg. The change in the electronic properties of cerium as a function of pressure is discussed.
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King et al. (1970) studied this question.
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