Becca, FedericoSorella, Sandro2004-12-272004-12-2720012001http://hdl.handle.net/2003/1942610.17877/DE290R-7062enThe American Physical SocietyPhysical Review Letters530Nagaoka Ferromagnetism in the Two-Dimensional Infinite-U Hubbard Model10.1103/PhysRevLett.86.3396article (journal)