49 citations · 72 across the 4 of their papers we have counts for
4 papers
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-…
Observation of optical absorption correlated with surface state of topological insulator
Jiwon Jeon, Kwangnam Yu, Jiho Kim +3
We performed broadband optical transmission measurements of Bi2Se3 and In-doped Bi(1-x)In(x)2Se3 thin films, where in the latter the spin-orbit coupling (SOC) strength can be tuned…
Gate tunable optical absorption and band structure of twisted bilayer graphene
Kwangnam Yu, Van Luan Nguyen, Tae Soo Kim +5
We report the infrared transmission measurement on electrically gated twisted bilayer graphene. The optical absorption spectrum clearly manifests the dramatic changes such as the s…
Infrared study of carrier scattering mechanism in ion-gated graphene
Kwangnam Yu, Jiwon Jeon, Jiho Kim +5
We performed infrared transmission experiment on ion-gel gated graphene and measured carrier scattering rate g as function of carrier density n over wide range up to n=2E13 cm-2. T…