Low-Frequency Magnetoplasma Resonance in Metals

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Abstract
This paper concerns a low-frequency magnetoplasma resonance which is related to the "whistler" of ionosphere physics and the "helicon" proposed by Aigrain. A sensitive method for observing this resonance is described. It involves the use of a diode ring demodulator as a phase-sensitive detector. The method has been used to study the resonance quantitatively in Cu, Ag, Au, and Pb; resonances were also observed in Sn, Zn, Cd, and Hg. Analysis of the data yields values for the Hall coefficient and resistivity as a function of magnetic field. The results obtained for the noble metals and Pb by this probeless method are in agreement with those obtained using conventional methods.

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