The Fermi surface of zirconium, as computed by means of the cellular approximation, is given. This departs fundamentally from the free-electron Fermi surface and allows an interpretation of the recent de Haasvan Alphen results obtained by Thorsen and Joseph. The right value (up to a factor of about 2) and the right angular dependence is given for four out of the five periods found by these authors. The free-electron Fermi surface, after some modification, accounted for one period only.
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Altmann et al. (1964) studied this question.