4 papers
Magic-Angle Semimetals with Chiral Symmetry
Yang-Zhi Chou, Yixing Fu, Justin H. Wilson +2
We construct and solve a two-dimensional, chirally symmetric model of Dirac cones subjected to a quasiperiodic modulation. In real space, this is realized with a quasiperiodic hopp…
Disorder in Twisted Bilayer Graphene
Justin H. Wilson, Yixing Fu, S. Das Sarma +1
We develop a theory for a qualitatively new type of disorder in condensed matter systems arising from local twist-angle fluctuations in two strongly coupled van der Waals monolayer…
Berry phase manipulation in ultrathin SrRuO films
Liang Wu, Fangdi Wen, Yixing Fu +7
A notion of the Berry phase is a powerful means to unravel the non-trivial role of topology in various novel phenomena observed in chiral magnetic materials and structures. A celeb…
Magic-angle semimetals
Yixing Fu, E. J. König, J. H. Wilson +2
Breakthroughs in two-dimensional van der Waals heterostructures have revealed that twisting creates a moiré pattern that quenches the kinetic energy of electrons, allowing for exot…