The Longitudinal Magnetoresistance of Bismuth Single Crystals in Strong Magnetic Fields
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The longitudinal magnetoresistance of bismuth single crystals is studied at 289°, 77.4°and 4.2°K in magnetic fields up to 80 kilo-oersted. The size effect of resistance cannot be observed at room temperature, but is observed at temperatures of liquid nitrogen and liquid helium, and the anomalous negative magnetoresistance is found at helium temperature. Especially in the case of ρ_<zz>(z) which is obtained under the condition of the magnetic field and the electric current perpendicular to the cleavage plane of the crystal, a negative longitudinal magnetoresistance is observed.
- 東北大学の論文
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