Azaria, PatrickLecheminant, PhilippeMila, Frédéricvan den Bossche, Mathias2004-12-272004-12-2720012001http://hdl.handle.net/2003/1962410.17877/DE290R-2333enThe American Physical SocietyPhysical Review Letters530Spontaneous Plaquette Formation in the SU(4) Spin-Orbital Ladder10.1103/PhysRevLett.86.4124article (journal)