200 citations · 1k across the 19 of their papers we have counts for
12 papers · 1 filter
Focused deposition of levitated nanoscale Au droplets
Joyce E. Coppock, B. E. Kane
We describe a method for depositing nanoscale liquid Au droplets, initially levitated in an ion trap in high vacuum, onto a remote substrate. A levitated Au nanosphere is melted, e…
Observation of undercooling in a levitated nanoscale liquid Au droplet
Joyce Coppock, Quinn Waxter, Robert Wolle +1
We investigate melting and undercooling in nanoscale (radius ~100 nm) gold particles that are levitated in a quadrupole ion (Paul) trap in a high vacuum environment. The particle i…
Optical and magnetic measurements of gyroscopically stabilized graphene nanoplatelets levitated in an ion trap
Pavel Nagornykh, Joyce E. Coppock, Jacob P. J. Murphy +1
Using optical measurements, we demonstrate that the rotation of micron-scale graphene nanoplatelets levitated in a quadrupole ion trap in high vacuum can be frequency locked to an…
Cooling of Levitated Graphene Nanoplatelets in High Vacuum
Pavel Nagornykh, Joyce E. Coppock, B. E. Kane
We demonstrate cooling of the center of mass motion of charged graphene nanoplatelets levitated in a quadrupole ion trap in high vacuum down to temperatures of 20 K. Parametric fee…
Strongly metallic electron and hole 2D transport in an ambipolar Si-vacuum field effect transistor
Binhui Hu, M. M. Yazdanpanah, B. E. Kane +2
We report experiment and theory on an ambipolar gate-controlled Si-vacuum field effect transistor (FET) where we study electron and hole (low-temperature 2D) transport in the same…
Temperature-dependent transport in a sixfold degenerate two-dimensional electron system on a H-Si(111) surface
Robert N. McFarland, Tomasz M. Kott, Luyan Sun +2
Low-field magnetotransport measurements on a high mobility (mu=110,000 cm^2/Vs) two-dimensional (2D) electron system on a H-terminated Si(111) surface reveal a sixfold valley degen…
Electric-field-dependent spectroscopy of charge motion using a single-electron transistor
K. R. Brown, L. Sun, B. E. Kane
We present observations of background charge fluctuators near an Al-AlO_x-Al single-electron transistor on an oxidized Si substrate. The transistor design incorporates a heavily do…
High mobility two-dimensional electron system on hydrogen-passivated silicon(111) surfaces
K. Eng, R. N. McFarland, B. E. Kane
We have fabricated and characterized a field-effect transistor in which an electric field is applied through an encapsulated vacuum cavity and induces a two-dimensional electron sy…
Weak Localization Thickness Measurements of Si:P Delta-Layers
D. F. Sullivan, B. E. Kane, P. E. Thompson
We report on our results for the characterization of Si:P delta-layers grown by low temperature molecular beam epitaxy. Our data shows that the effective thickness of a delta-layer…
A Millikelvin Scanned Probe for Measurement of Nanostructures
K. R. Brown, L. Sun, B. E. Kane
We demonstrate a scanning force microscope, based upon a quartz tuning fork, that operates below 100 mK and in magnetic fields up to 6 T. The microscope has a conducting tip for el…
Ballistic electron transport exceeding 160 microns in an undoped GaAs/AlGaAs FET
G. R. Facer, B. E. Kane, A. S. Dzurak +5
We report measurements of GaAs/AlGaAs undoped field-effect transistors in which two-dimensional electron gases (2DEGs) of exceptional quality and versatility are induced without mo…
Anomalous Carrier Lifetime Enhancement and Effective Mass Discontinuity Observed during Magnetic-field-induced Subband Depopulation in a Parabolic Quantum Well
G. R. Facer, B. E. Kane, R. G. Clark +1
In GaAs/AlGaAs parabolic quantum wells, subbands are depopulated by a magnetic field in the well plane. A small additional perpendicular field induces Shubnikov-de-Haas (SdH) oscil…