15 citations · 15 across the 1 of their papers we have counts for
8 papers
Atomic configuration controlled photocurrent in van der Waals homostructures
Ying Xiong, Li-kun Shi, Justin C. W. Song
Conventional photocurrents at a p-n junction depend on macroscopic built-in fields and are typically insensitive to the microscopic details of a crystal's atomic configuration. Her…
Cooperative orbital moments and edge magnetoresistance in monolayer WTe
Arpit Arora, Li-kun Shi, Justin C. W. Song
We argue that edge electrons in monolayer WTe can possess a "cooperative" orbital moment (COM) that critically impacts its edge magnetoresistance behavior. Arising from the coo…
Shift vector as the geometric origin of beam shifts
Li-kun Shi, Justin C. W. Song
Goos-Hanchen (GH) and Imbert-Fedorov (IF) shifts are lateral and transverse displacements of a wavepacket reflecting off a surface. A dramatic real-space manifestation of wavepacke…
Gate-tunable flat bands in van der Waals patterned dielectric superlattices
Li-kun Shi, Jing Ma, Justin C. W. Song
Superlattice engineering provides the means to reshape the fabric felt by quasiparticles moving in a material. Here we argue that bandstructure engineering with superlattices can b…
Non-trivial quantum oscillation geometric phase shift in a trivial band
Biswajit Datta, Pratap Chandra Adak, Li-kun Shi +4
The accumulation of non-trivial geometric phases in a material's response is often a tell-tale sign of a rich underlying internal structure. Studying quantum oscillations provides…
Fermi arc induced vortex structure in Weyl beam shifts
Udvas Chattopadhyay, Li-Kun Shi, Baile Zhang +2
In periodic media, despite the close relationship between geometrical effects in the bulk and topological surface states, the two are typically probed separately. We show that when…