Donges, JörnHaberland, HellmutHippler, ThomasIssendorff, Bernd vonKronmüller, WernerKusche, RobertSchmidt, Martin2004-12-102004-12-1020012001http://hdl.handle.net/2003/1832410.17877/DE290R-12435enThe American Physical SocietyPhysical Review Letters530Negative Heat Capacity for a Cluster of 147 Sodium Atoms10.1103/PhysRevLett.86.1191article (journal)