Superconductivity of VN under pressure

Abstract
The superconducting transition temperature (Tc) for VN has been determined as a function of hydro-static pressure up to 17 kbar. Similar to V metal, Tc increases monotonically in this pressure range, except the rate of increase TcP for VN is even stronger. The upper critical field of VN has also been measured. The results are discussed in conjunction with the effects due to spin fluctuation.