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Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure

Author(s): Bian, Guang; Chung, Ting-Fung; Chen, Chaoyu; Liu, Chang; Chang, Tay-Rong; et al

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dc.contributor.authorBian, Guang-
dc.contributor.authorChung, Ting-Fung-
dc.contributor.authorChen, Chaoyu-
dc.contributor.authorLiu, Chang-
dc.contributor.authorChang, Tay-Rong-
dc.contributor.authorWu, Tailung-
dc.contributor.authorBelopolski, Ilya-
dc.contributor.authorZheng, Hao-
dc.contributor.authorXu, Su-Yang-
dc.contributor.authorSanchez, Daniel S.-
dc.contributor.authorAlidoust, Nasser-
dc.contributor.authorPierce, Jonathan-
dc.contributor.authorQuilliams, Bryson-
dc.contributor.authorBarletta, Philip P.-
dc.contributor.authorLorcy, Stephane-
dc.contributor.authorAvila, José-
dc.contributor.authorChang, Guoqing-
dc.contributor.authorLin, Hsin-
dc.contributor.authorJeng, Horng-Tay-
dc.contributor.authorAsensio, Maria-Carmen-
dc.contributor.authorChen, Yong P.-
dc.contributor.authorHasan, M. Zahid-
dc.identifier.citationBian, Guang, Chung, Ting-Fung, Chen, Chaoyu, Liu, Chang, Chang, Tay-Rong, Wu, Tailung, Belopolski, Ilya, Zheng, Hao, Xu, Su-Yang, Sanchez, Daniel S, Alidoust, Nasser, Pierce, Jonathan, Quilliams, Bryson, Barletta, Philip P, Lorcy, Stephane, Avila, José, Chang, Guoqing, Lin, Hsin, Jeng, Horng-Tay, Asensio, Maria-Carmen, Chen, Yong P, Hasan, M Zahid. (2016). Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure. 2D Materials, 3 (2), 021009 - 021009. doi:10.1088/2053-1583/3/2/021009en_US
dc.description.abstractGraphene and topological insulators (TI) possess two-dimensional Dirac fermions with distinct physical properties. Integrating these two Dirac materials in a single device creates interesting opportunities for exploring new physics of interacting massless Dirac fermions. Here we report on a practical route to experimental fabrication of graphene-Sb2Te3 heterostructure. The graphene-TI heterostructures are prepared by using a dry transfer of chemical-vapor-deposition grown graphene film. ARPES measurements confirm the coexistence of topological surface states of Sb2Te3 and Dirac {\pi} bands of graphene, and identify the twist angle in the graphene-TI heterostructure. The results suggest a potential tunable electronic platform in which two different Dirac low-energy states dominate the transport behavior.en_US
dc.format.extent021009 - 021009en_US
dc.relation.ispartof2D Materialsen_US
dc.rightsAuthor's manuscripten_US
dc.titleExperimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructureen_US
dc.typeJournal Articleen_US

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