Observation of Two-Magnon Bound States in the Two-Leg Ladders of (Ca, La)14Cu24O41

Grüninger, M.Knetter, C.Nunner, T.Schmidt, K. P.Windt, M.2004-12-032004-12-0320012001http://hdl.handle.net/2003/109510.17877/DE290R-10904enThe American Physical SocietyPhysical Review Letters530Observation of Two-Magnon Bound States in the Two-Leg Ladders of (Ca, La)14Cu24O4110.1103/PhysRevLett.87.127002article (journal)