Magnetoresistance in single crystals of black phosphorus is studied at ambient and hydrostatic pressures. In the semiconducting states at pressures below 0.71 GPa, the magnetoresistance shows periodic oscillations, which can be ascribed to the magneto-phonon resonance that is characteristic of high mobility semiconductors. In the metallic state above 1.64 GPa, the both transverse and longitudinal magnetoresistance show titanic increase with exhibiting superposed Shubnikov-de Haas oscillations. The observed small Fermi surfaces, high mobilities and light effective masses of carriers in semimetallic black phosphorus are comparable to those in the representative elemental semimetals of bismuth and graphite.
@article{arxiv.1505.06844,
title = {Anomalous Quantum Transport Properties in Semimetallic Black Phosphorus},
author = {Kazuto Akiba and Astushi Miyake and Yuichi Akahama and Kazuyuki Matsubayashi and Yoshiya Uwatoko and Hayato Arai and Yuki Fuseya and Masashi Tokunaga},
journal= {arXiv preprint arXiv:1505.06844},
year = {2015}
}
Comments
11 pages, 5 figures, to be published in J. Phys. Soc. Jpn