Suk Bum Chung, Hong Yao, Taylor L. Hughes, and Eun-Ah KimPhys. Rev. B81, 060403. DOI: http://dx.doi.org/10.1103/PhysRevB.81.060403. arXiv:0909.2655 Thursday, February 4, 2010 Physical Review B 2010 Chung.pdfFunding Soure: NSF Grant EEC-0646547Research Area: Topological Phases