776 citations · 1.1k across the 18 of their papers we have counts for
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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…
Atomic scale visualization of topological spin textures in the chiral magnet MnGe
Jacob Repicky, Po-Kuan Wu, Tao Liu +8
Spin polarized scanning tunneling microscopy is used to directly image topological magnetic textures in thin films of MnGe, and to correlate the magnetism with structure probed at…
Tunable tunnel barriers in a semiconductor via ionization of individual atoms
Sara M. Mueller, Dongjoon Kim, Stephen R. McMillan +10
We report scanning tunneling microscopy studies of individual adatoms deposited on an InSb(110) surface. The adatoms can be reproducibly dropped off from the STM tip by voltage pul…
Surface Structures of Epitaxial B20 FeGe(-1-1-1) Thin Films via Scanning Tunneling Microscopy
J. P. Corbett, T. Zhu, A. S. Ahmed +5
We grew 20-100 nm thick films of B20 FeGe by molecular beam epitaxy and investigated the surface structures via scanning tunneling microscopy. We observed the atomic resolution of…
STM and DFT studies of CO2 adsorption on Cu(100)-O surface
Steven J. Tjung, Qiang Zhang, Jacob J. Repicky +5
We characterized CO2 adsorption and diffusion on the missing row reconstructed Cu(100)-O surface using a combination of scanning tunneling microscopy (STM) and density functional t…
Crystalline hydrogenation of graphene by STM tip-induced field dissociation of H
S. J. Tjung, S. M. Hollen, G. A. Gambrel +3
We have developed a novel method for crystalline hydrogenation of graphene on the nanoscale. Molecular hydrogen was physisorbed at 5 K onto pristine graphene islands grown on Cu(11…
Native defects in ultra-high vacuum grown graphene islands on Cu(111)
S. M. Hollen, S. J. Tjung, K. R. Mattioli +4
We present a scanning tunneling microscopy (STM) study of native defects in graphene islands grown by ultra-high vacuum (UHV) decomposition of ethylene on Cu(111). We characterize…
Modification of electronic surface states by graphene islands on Cu(111)
S. M. Hollen, G. A. Gambrel, S. J. Tjung +3
We present a study of graphene/substrate interactions on UHV-grown graphene islands with minimal surface contamination using \emph{in situ} low-temperature scanning tunneling micro…
Spin dynamics in semiconductor nanocrystals
J. A. Gupta, D. D. Awschalom, Al. L. Efros +1
Time-resolved Faraday rotation is used to study both transverse and longitudinal spin relaxation in chemically-synthesized CdSe nanocrystals (NCs) 22-80 Angstroms in diameter. The…