Joseph Sink

collaborators

6 papers

cond-mat.mes-hall2026

Broken site symmetry of Fe adatoms on Bi $_{2}$ Te $_{3}$

Duy Nguyen, Hari Paudyal, Joseph R. Sink +2

We report a combined scanning tunneling microscopy and atomistic theoretical study of Fe adatoms on the Bi $_{2}$ Te $_{3}$ (111) surface. Topographic imaging at $4.5$ ~K shows that Fe adat…

cond-mat.mtrl-sci2026

Nuclear-Electron Hyperfine Coupling of the Shallow States Associated with Vacancies in Gallium Nitride

Joseph Sink, Michael E. FlattÃ©

We use multiband real space Green's functions computed using open-boundary conditions for clean GaN to exactly solve the potential-scattering Dyson equation to obtain the electroni…

cond-mat.supr-con2025

Microscopic Scattering Approach to In-Gap States: Cr Adatoms on Superconducting Î²-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 $I^^{2} - B i_{2} P d$ , by combining ab initi…

cond-mat.mes-hall2025

Imaging the Acceptor Wave Function Anisotropy in Silicon

Manuel Siegl, Julian Zanon, Joseph Sink +5

We present the first scanning tunneling microscopy (STM) images of hydrogenic acceptor wave functions in silicon. These acceptor states appear as square ring-like features in STM i…

cond-mat.mtrl-sci2025

Ab initio calculations of erbium crystal field splittings in oxide hosts: role of the 4f radial wave function

Yogendra Limbu, Yueguang Shi, Joseph Sink +3

We expand here our description of a newly developed simple and effective ab initio method of calculating crystal field coefficients (CFCs) of rare-earth atoms in insulating hosts,…