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57 papers
Chirality and correlations in the spontaneous spin-valley polarization of rhombohedral multilayer graphene
Yunsu Jang, Youngju Park, Jeil Jung +1
We investigate the total energies of spontaneous spin-valley polarized states in bi-, tri-, and tetralayer rhombohedral graphene where the long-range Coulomb correlations are accou…
Optical transitions of a single nodal ring in SrAs: radially and axially resolved characterization
Jiwon Jeon, Jiho Jang, Hoil Kim +7
SrAs is a unique nodal-line semimetal that contains only a single nodal ring in the Brillouin zone, uninterrupted by any trivial bands near the Fermi energy. We performed axis-…
Electronic structure of biased alternating-twist multilayer graphene
Kyungjin Shin, Yunsu Jang, Jiseon Shin +2
We theoretically study the energy and optical absorption spectra of alternating twist multilayer graphene (ATMG) under a perpendicular electric field. We obtain analytically the lo…
Nearly flat bands in twisted triple bilayer graphene
Jiseon Shin, Bheema Lingam Chittari, Yunsu Jang +2
We investigate the electronic structure of alternating-twist triple Bernal-stacked bilayer graphene (t3BG) as a function of interlayer coupling , twist angle , interlayer pot…
Tunable bulk photovoltaic effect in strained -GeSe
Hong-Guk Min, Churlhi Lyi, Youngkuk Kim
Recently, Lee \textit{et. al.} [Nano Lett. \textbf{21}, 4305 (2021)] newly synthesized monochalcogenide GeSe in a polar phase, referred to as -phase. Motivated by this work, we…
Semiclassical magnetotransport including the effects of the Berry curvature and Lorentz force
Seungchan Woo, Brett Min, Hongki Min
In topological semimetals and insulators, negative longitudinal magnetoresistance and angle-dependent planar Hall effect have been reported arising from the Berry curvature. Using…