Eryin Wang - Novel and tailored electronic structures in 2D material heterostructures

MPSD Seminar

  • Date: May 8, 2017
  • Time: 02:00 PM - 03:00 PM (Local Time Germany)
  • Speaker: Eryin Wang
  • Department of Physics, Tsinghua University, Beijing, China
  • Location: CFEL (Bldg. 99)
  • Room: Seminar Room IV, O1.111
  • Host: Andrea Cavalleri
The big family of 2D materials provides variable and interesting stacking blocksfor constructing 2D heterostructures to achieve novel electronic propertiesdistinct from its constitute materials. So far, the 2D material heterostructureshave been an emerging research area with increasing scientific interest. In thistalk, I will present the angle-resolved photoemission spectroscopy studies ontwo novel 2D heterostructures, Bi2Se3/BSCCO [1] and graphene/h-BN [2,3]. Iwill show how the proximity effect (in Bi2Se3/BSCCO) and moire superlatticepotential (in graphene/h-BN) tune the electronic properties and further lead tothe realization of many novel quantum phenomena. The variety of 2D materialsgenerates great possibilities in 2D heterostructures which are waiting for moreresearch investigations.

[1] Eryin Wang, et al, “Fully gapped topological surface states in Bi2Se3 films induced by a dwave high-temperature superconductor” Nature Physics, 9, 621-625 (2013)
[2] Eryin Wang, et al, “Gaps induced by inversion symmetry breaking and second-generation Dirac cones in graphene/hexagonal boron nitride” Nature Physics, 12, 1111-1116 (2016)
[3] Eryin Wang, et al, “Electronic structure of transferred graphene/h-BN van der Waals heterostructures with nonzero stacking angles by nano-ARPES” J. Phys.: Condens. Matter, 28, 444002 (2016)

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