Reviews —Pressure-Tuning of Novel Superconductivity in Strongly Correlated Electron Systems—
Effect of Pressure on the 3d Mono-Pnictides CrAs and MnP
2019 Volume 29 Issue 4 Pages 272-282
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2019 Volume 29 Issue 4 Pages 272-282
In transition-metal monopnictides, CrAs and MnP, CrAs forms a double-helical magnetic structure below TN=270 K accompanied by a strong first-order structural transition, while MnP first undergoes a ferromagnetic transition at Tc=290 K and then adopts a similar double-helical order below Ts=50 K. By using high pressure, we observed superconductivity with a maximum superconducting transition temperature of Tsc=2 K and 1 K under a critical pressure of Pc=0.8 and 8 GPa for CrAs and MnP, respectively. In this review article, we will summarize the achievements of superconductivity in CrAs and MnP.
