Authors: D Hsieh; Y Xia; D Qian; L Wray; J H Dil; F Meier; J Osterwalder; L Patthey; J G Checkelsky; N P Ong; A V Fedorov; H Lin; A Bansil; D Grauer; Y S Hor; R J Cava; M Z Hasan Journal: Nature Date: 2009-07-20 Impact factor: 49.962
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