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DTSTART:20250330T030000
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DTSTAMP:20260424T202022Z
UID:68305309a03a7445026445@ist.ac.at
DTSTART:20250805T110000
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DESCRIPTION:Speaker: Guorui Chen\nhosted by Hryhoriy Polshyn\nAbstract: Mul
 tiple stacking sequences between atomic layers provide a unique knob for t
 uning electronic properties of two-dimensional materials. In this talk\, I
  will take graphene as an example and show our experimental results of gra
 phene multilayers in special stackings. Experimental advances allow us to 
 fabricate high-quality special stacked multilayer graphene devices encapsu
 lated by hBN. By electrical transport measurement\, we study two different
  stacking sequences\, rhombohedral stacking and mixed-stacking. In rhomboh
 edral multilayer graphene\, we observe a series of correlated and topologi
 cal electronic states with spontaneous broken-symmetries in the crystallin
 e and moir flat band. For the mixed stacking\, we find a non-centrosymmetr
 ic multilayer graphene\, and observe transport signatures of intrinsic lay
 er polarization and multi-flat bands. References:1.Kai Liu et al\, Nature 
 Nanotechnology\, 19\, 188-195 (2024)2.Yating Sha et al\, Science\,384\, 14
 1-149 (2024)3.Jian Zheng et al\, arXiv:2412.099854.Kai Liu et al\, arXiv:2
 505.12478
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room B / 63 seats (I23.
 EG.102)\, ISTA
ORGANIZER:swiddman@ist.ac.at
SUMMARY:Guorui Chen: Correlation and topology in special-stacked multilayer
  graphene
URL:https://talks-calendar.ista.ac.at/events/5838
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