EFFECT OF MANY-BODY INTERACTIONS ON THE TEMPERATURE-DEPENDENT AMPLITUDE OF DE HAAS-VAN ALPHEN OSCILLATIONS.
CORNELL UNIV ITHACA N Y LAB OF ATOMIC AND SOLID STATE PHYSICS
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Improvements in experimental techniques permit the measurement of the temperature dependence of the amplitude of de Haas - van Alphen oscillations. It is shown that at low temperatures when many-body effects are included the mass should be the band structure effective mass corresponding to the cyclotron orbits associated with the de Haas-van Alphen oscillation enhanced by electron-phonon interactions.