A. W. N. Roy

Jan 11, 2024 | link.aps.org | Y. F. Wu |Advanced Materials |A. W. N. Roy |Science Pilani

Abstract The hexatic phase is an intermediate stage in the melting process of a 2D crystal due to topological defects. Recently, this exotic phase was experimentally identified in the vortex lattice of 2D weakly disordered superconducting MoGe by scanning tunneling microscopic measurements. Here, we study this vortex state by the Nernst effect, which is an effective and sensitive tool to detect vortex motion, especially in the superconducting fluctuation regime.