Abstract
THE de Haas – van Alphen effect in copper has been observed in a whisker made by the Brenner method1 and oriented with the [111] axis along the field (see Fig. 1); the period is about 1.7 × 10−9 gauss−1, which is close to the value for a free electron sphere of one electron/atom and not inconsistent with the Fermi surface proposed by Pippard2; the effective electron mass as estimated from the temperature variation of the effect is about 1.3 times the free electron mass.
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