Abstract

The absolute amplitude of entropy oscillations related to the de Haas-van Alphen effect has been measured in a single crystal of tungsten by a straightforward dc technique in which isothermal conditions are employed rather than the adiabatic conditions that exist in the closely related phenomena known as magnetothermal oscillations. The measured amplitudes are in good agreement with the usual theories of the de Haas-van Alphen effect, when previously determined details of the tungsten Fermi surface are assumed. Some arguments on the validity of amplitude measurements are discussed.

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