Colloquium：Superconductivity in the vicinity of antiferromagnetic order in CrAs and MnP (Prof. Jianlin Luo , June 10)

Colloquium

Title:  Stabilizing forces acting on polar surfaces of ionic semiconductors

Speaker:  Prof. Jianlin Luo, Institute of Physics Chinese Academy of Sciences

Location:  Room 111, Physics Building

Time: 15:00-16:00, Wed, June 10 , 2015

Abstract:

Superconductivity was observed in a majority of 3d transition metal compounds except for the Cr- or Mn-based compounds. It is thus of high interest in exploring possible superconductivity in those systems. In this talk, I will present the discovery of superconductivity on the verge of antiferromagnetic order in CrAs and MnP via the application of external high pressure. The close proximity of superconductivity to an antiferromagnetic order highly suggests an unconventional pairing mechanism for both CrAs and MnP. The present finding opens a new avenue for searching novel superconductors in the Cr and Mn based systems.