Graduate Thesis Or Dissertation
 

Longitudinal magnetoresistance of single-crystal mercury

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/ns0649670

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  • The longitudinal magnetoresistance of single-crystals of mercury is investigated experimentally, both in the low field and the high field regions. The variation of the magnetoresistance with crystal purity, orientation, size and temperature below 4.2°K is presented. In the low field region the data are discussed in terms of existing theory. The data in the high field region are treated following the ideas of Pippard in terms of a simplified model of the mercury Fermi surface. Agreement of the experimental data with the model calculations is found to be quite good considering the simplicity of the model. The results of an experimental investigation of the zero field resistance of the mercury crystals from 1.8°K to the melting point are also presented. Observed deviations from the Bloch-Grüneisen law at low temperatures and near the melting point are discussed. An anomaly is observed in the resistance versus temperature curves near 4.2°K, A possible explanation of this behavior is presented, A discussion of a number of new techniques related to the methods of growth, X-ray orientation and handling of the mercury crystals is also included.
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  • File scanned at 300 ppi using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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