58 citations · 134 across the 8 of their papers we have counts for
8 papers
Electronic transition from graphite to graphene via controlled movement of the top layer with scanning tunneling microscopy
P. Xu, Y. Yang, D. Qi +5
A series of measurements using a technique called electrostatic-manipulation scanning tunneling microscopy (EM-STM) were performed on a highly-oriented pyrolytic graphite surface.…
Atomic-Scale Movement Induced in Nano-Ridges by Scanning Tunneling Microscopy on Epitaxial Graphene Grown on 4H-SiC(0001)
P. Xu, S. D. Barber, J. K. Schoelz +8
Nanoscale ridges in epitaxial multilayer graphene grown on the silicon face of 4 degree off-cut 4H-SiC (0001) were found using scanning tunneling microscopy (STM). These nano-ridge…
Role of bias voltage and tunneling current in the perpendicular displacements of freestanding graphene via scanning tunneling microscopy
P. Xu, S. D. Barber, M. L. Ackerman +2
Systematic displacement measurements of freestanding graphene as a function of applied bias voltage and tunneling current setpoint using scanning tunneling microscopy (STM) are pre…
Etch-stop method for reliably fabricating sharp yet mechanically stable scanning tunneling microscope tips
G. Basnet, J. K. Schoelz, P. Xu +3
An extension of the direct-current, double-lamella drop-off technique for electrochemically etching tungsten scanning-tunneling-microscope tips is presented. The key fabrication st…
Graphene Ripples as a Realization of a Two-Dimensional Ising Model: A Scanning Tunneling Microscope Study
J. K. Schoelz, P. Xu, V. Meunier +4
Ripples in pristine freestanding graphene naturally orient themselves in an array that is alternately curved-up and curved-down; maintaining an average height of zero. Using scanni…
Multilayer graphene, Moiré patterns, grain boundaries and defects identified by scanning tunneling microscopy on the m-plane, non-polar surface of SiC
P. Xu, D. Qi, J. K. Schoelz +9
Epitaxial graphene is grown on a non-polar n+ 6H-SiC m-plane substrate and studied using atomic scale scanning tunneling microscopy. Multilayer graphene is found throughout the sur…