CM Seminar: Magic Angle Twisted Bilayer Graphene
Event Date:
2019-03-14T14:00:00
2019-03-14T15:30:00
Event Location:
BRIM 311
Speaker:
Allan H. MacDonald,
Physics Department, University of Texas at Austin
Physics Department, University of Texas at Austin
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Event Information:
Magic Angle Twisted Bilayer Graphene (MATBG) is a remarkably tunable and relatively simple strongly correlated electron system, with its own set of specific peculiarities. My talk will focus on similarities and differences between the interaction physics of flat-band moiré superlattices MATBG and transition metal dichalcogenide bilayers which simulate Hubbard model physics more closely. I will discuss the nature of the insulating ground states and the collective excitation spectra at 1/2, 1/4, and 3/4 filling of the moiré conduction and valence bands, and speculate on the relationship between the insulating states, their collective modes, and the superconducting domes.
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2019-03-14T14:00:00
2019-03-14T15:30:00
CM Seminar: Magic Angle Twisted Bilayer Graphene
Event Information:
Magic Angle Twisted Bilayer Graphene (MATBG) is a remarkably tunable and relatively simple strongly correlated electron system, with its own set of specific peculiarities. My talk will focus on similarities and differences between the interaction physics of flat-band moiré superlattices MATBG and transition metal dichalcogenide bilayers which simulate Hubbard model physics more closely. I will discuss the nature of the insulating ground states and the collective excitation spectra at 1/2, 1/4, and 3/4 filling of the moiré conduction and valence bands, and speculate on the relationship between the insulating states, their collective modes, and the superconducting domes.
Event Location:
BRIM 311