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Fig. 2 (A and B) A nonmagnetically doped topological insulator with a Dirac point connecting the upper and lower Dirac cones as in the undoped case.

Y L Chen et al. Science 2010;329:659-662

Published by AAAS

Science 2010 Aug 329(5992) 659-62, Fig. 2  

Y L Chen et al. Science 2010;329:659-662 Published by AAAS