Millis, A. J.Morr, D. K.Schmalian, J.2004-12-032004-12-0320012001http://hdl.handle.net/2003/134310.17877/DE290R-11137enThe American Physical SocietyPhysical Review Letters530Local Defect in Metallic Quantum Critical Systems10.1103/PhysRevLett.87.167202article (journal)