PaperHoles trapped near Mg2+ and Al3+ impurities in SrTiO3O.F. Schirmer, W. Berlinger, et al.Solid State Communications
PaperVortex dynamics in YBaCuO single crystals with point- and line-like defects-flux creep studiesJ.R. Thompson, Yang Ren Sun, et al.Physica A: Statistical Mechanics and its Applications