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Electron-hole balance and the anomalous pressure-dependent superconductivity in black phosphorus

Author(s): Guo, Jing; Wang, Honghong; von Rohr, Fabian; Yi, Wei; Zhou, Yazhou; et al

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Abstract: Here we report the in situ high-pressure (up to similar to 50-GPa) Hall-effect measurements on single-crystal black phosphorus. We find a strong correlation between the sign of the Hall coefficient, an indicator of the dominant carrier type, and the superconducting transition temperature (T-C). Importantly, we find a change from electron-dominant to hole-dominant carriers in the simple cubic phase of phosphorus at a pressure of similar to 17.2GPa, providing an explanation for the puzzling valley it displays in its superconducting T-C vs pressure phase diagram. Our results reveal that hole carriers play an important role in developing superconductivity in elemental phosphorus and the valley in T-C at 18.8 GPa is associated with a Lifshitz transition.
Publication Date: 27-Dec-2017
Citation: Guo, Jing, Wang, Honghong, von Rohr, Fabian, Yi, Wei, Zhou, Yazhou, Wang, Zhe, Cai, Shu, Zhang, Shan, Li, Xiaodong, Li, Yanchun, Liu, Jing, Yang, Ke, Li, Aiguo, Jiang, Sheng, Wu, Qi, Xiang, Tao, Cava, Robert Joseph, Sun, Liling. (2017). Electron-hole balance and the anomalous pressure-dependent superconductivity in black phosphorus. PHYSICAL REVIEW B, 96 (10.1103/PhysRevB.96.224513
DOI: doi:10.1103/PhysRevB.96.224513
ISSN: 2469-9950
EISSN: 2469-9969
Pages: 96.22:224513-1 - 224513-7
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW B
Version: Final published version. This is an open access article.
Notes: Physical Review B. Volume 96, Issue 22, 27 December 2017, Article number 224513.

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