Mei, Y. F.Moulding, K.Siu, G. G.Wong, K. L.Wu, X. L.2004-12-272004-12-2720012001http://hdl.handle.net/2003/1931910.17877/DE290R-6964enThe American Physical SocietyPhysical Review Letters530Spherical Growth and Surface-Quasifree Vibrations of Si Nanocrystallites in Er-Doped Si Nanostructures10.1103/PhysRevLett.86.3000article (journal)