Buda, L. D.Chen, Y.Ebels, U.Lebib, A.Li, S. P.Natali, M.Ounadjela, K.Peyrade, D.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1828610.17877/DE290R-6254enThe American Physical SocietyPhysical Review Letters530Flux Closure Structures in Cobalt Rings10.1103/PhysRevLett.86.1102article (journal)