Pressure-induced phase transitions and superconductivity in a black phosphorus single crystal.

ABSTRACT: We report a thorough study of the transport properties of the normal and superconducting states of black phosphorus (BP) under magnetic field and high pressure with a large-volume apparatus that provides hydrostatic pressure to induce transitions from the layered A17 phase to the layered A7 phase and to the cubic phase of BP. Quantum oscillations can be observed at P ≥ 1 GPa in both resistivity and Hall voltage, and their evolutions with pressure in the A17 phase imply a continuous enlargement of Fermi surface. A significantly large magnetoresistance (MR) at low temperatures is observed in the A7 phase that becomes superconducting below a superconducting transition temperature T _c ∼ 6-13 K. T _c increases continuously with pressure on crossing the

SUBMITTER: Li X 

PROVIDER: S-EPMC6176577 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature