Izumi, M.Kishida, H.Miura, K.Okamoto, H.Ono, M.2004-12-032004-12-0320012001http://hdl.handle.net/2003/141810.17877/DE290R-11229enThe American Physical SocietyPhysical Review Letters530Large Third-Order Optical Nonlinearity of Cu-O Chains Investigated by Third-Harmonic Generation Spectroscopy10.1103/PhysRevLett.87.177401article (journal)