Abstract
The electrical transport properties of highly oriented pyrolytic graphite (HOPG) have been studied. Huge magnetoresistances (MR), up to 4 950% at 300 K and 85 300% at 4.2 K in magnetic fields of 8.15 T, respectively, were found. The Shubnikov–de Hass (S–dH) oscillations have been observed clearly. The huge magnetoresistance at room temperature makes graphite a strong candidate for magnetic field sensing and magnetoelectronic devices.
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