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arXiv · 2512.12956

Non-linear transport in field-induced insulating states of graphite

Masashi Tokunaga·Kazuto Akiba·Hiroshi Yaguchi·Akira Matsuo·Koichi Kindo
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Abstract

Graphite exhibits multi-stage phase transitions in the quantum-limit states realized by magnetic fields applied along the c-axis. Despite extensive studies on this phenomenon, the origin remains a matter of debate to this day. We performed high-field magnetotransport measurements on single crystals of graphite, focusing on the non-linear conductivity in pulsed-magnetic fields of up to 75 T. The longitudinal magnetoresistance exhibits distinct non-linearity not only in the first but also in the second field-induced phases.

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Masashi Tokunaga, Kazuto Akiba, Hiroshi Yaguchi, Akira Matsuo, Koichi Kindo. 2025-12-15. Non-linear transport in field-induced insulating states of graphite. https://arxiv.org/abs/2512.12956

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