10 papers
Intrinsic linewidths of confined phonons in few-layer hBN
Aleksandar Radic, Jack Kelsall, Akshay Rao
Understanding lattice vibrations in two-dimensional (2D) materials is essential for controlling thermal transport, mechanical response, and energy dissipation in nanoscale devices.…
High resolution large working distance scanning helium microscopy
Sam M Lambrick, Nick A von Jeinsen, Alek RadiÄ +3
Scanning helium microscopy (SHeM) is attractive for imaging delicate and insulating surfaces because it combines a non-destructive neutral-atom probe with strong surface sensitivit…
Defect-modified acoustic phonons in a single layer of MoS2
Aleksandar Radic, Boyao Liu, Akshay Rao +1
The thermal, mechanical, and electronic performance of atomically thin semiconductors is governed by their low-energy phonons, yet the impact of atomic-scale disorder on these mode…
Characterising Atomic-Scale Surface Disorder on 2D Materials Using Neutral Atoms
Chenyang Zhao, Sam M. Lambrick, Ke Wang +5
Two-dimensional (2D) transition metal dichalcogenides (TMDs), such as MoS2, have the potential to be widely used in electronic devices and sensors due to their high carrier mobilit…
Measuring vacancy-type defect density in monolayer semiconductors
Aleksandar Radic, Nick von Jeinsen, Vivian Perez +12
Two-dimensional (2D) materials have attracted wide-spread interest due to their unique and tunable properties. Their optoelectronic, mechanical, and thermal properties are greatly…
Heliometric stereo: a new frontier in surface profilometry
Aleksandar Radic, Sam Lambrick, Chenyang Zhao +4
Accurate and reliable measurements of three-dimensional surface structures are important for a broad range of technological and research applications, including materials science,…