A. R. Mellnik, J. S. Lee, A. Richardella, J. L. Grab, P. J. Mintun, M. H. Fischer, A. Vaezi, A. Manchon, E.-A. Kim, N. Samarth, D. C. RalphNature 511, 449–451 (2014). http://dx.doi.org/10.1038/nature13534 arXiv:1402.1124 Thursday, July 24, 2014 PDFFunding Soure: NSF grant DMR-1120296DARPA N66001-11-1-4110ARO W911NF-08-2-0032NSF DMR-1010768Research Area: Topological Phases