9 papers
Broken site symmetry of Fe adatoms on BiTe
Duy Nguyen, Hari Paudyal, Joseph R. Sink +2
We report a combined scanning tunneling microscopy and atomistic theoretical study of Fe adatoms on the BiTe(111) surface. Topographic imaging at ~K shows that Fe adat…
Kinetics of electron-phonon scattering in silicon resolved by Rydberg transitions of donors
Nils Dessmann, Aidan G. McConnell, Sergey G. Pavlov +6
Rydberg states of atoms in vacuum are now well recognized as a resource for quantum technologies. Donors in semiconductors also display analogous states, which have been proposed f…
Ultrafast Light-Induced Magnetoelectric Effect in van der Waals Magnetic Semiconductor Heterostructures
Wenyi Zhou, Ravi Kumar Bandapelli, Hari Paudyal +8
Atomic-scale heterostructures of van der Waals (vdW) magnets and semiconductors provide a unique environment for exploring magnetic dynamics. In contrast to typical photothermal ex…
Suppression of charge-density wave and superconductivity in a lithiated NbSe monolayer
Hari Paudyal, Michael E. Flatté
We present an \textit{ab initio} investigation of the long-range charge density wave (CDW) order and superconducting properties of the pristine and lithiated NbSe monolayer. St…
Microscopic Scattering Approach to In-Gap States: Cr Adatoms on Superconducting β-Bi2Pd
Joseph Sink, Hari Paudyal, Divya Jyoti +4
We develop a microscopic scattering formalism to describe Yu-Shiba-Rusinov (YSR) states due to a single Cr adatom on the Bi-terminated surface of , by combining ab initi…
Intrinsic Berry phase contribution to Hall conductivity in CoS
Tamal Kumar Dalui, Hari Paudyal, Durga Paudyal +1
In Weyl semi-metals, the conduction and valence bands intersect at distinct points on the Brillouin zone (Weyl points), which act as monopoles of Berry curvature in momentum space.…