(Vortex Penetration Field of Films Made of Nb, MgB2 and Nb3Sn as a Material for SRF Cavities)
T. Tajima, N.F. Haberkorn, L. Civale, D.J. Devlin, M.E. Hawley, R.K. Schulze, C. James, M. Krishnan, E. Valderrama, B.H. Moeckly, C. Yung, X.X. Xi, T. Tan, 松本 明善.