On seven-brane and instanton solutions of type IIB Original Research Article

It is shown that magnetic seven-branes previously considered as different objects are members of a one-parametric family of supersymmetric seven branes. We enlarge the class of seven-branes by constructing new magnetically and also electrically charged seven-branes. The solutions display a kink-like behavior. We also construct a solution that naturally generalizes the D-instanton.