40 citations · 76 across the 10 of their papers we have counts for
3 papers · 1 filter
The Microwave Hall Effect
J. E. Coppock, J. R. Anderson, W. B. Johnson
This paper describes a simple microwave apparatus to measure the Hall effect in semiconductor wafers. The advantage of this technique is that it does not require contacts on the sa…
Ambipolar High Mobility Hexagonal Transistors on Hydrogen-Terminated Silicon (111) Surfaces
Binhui Hu, Mohamad M. Yazdanpanah, Joyce E. Coppock +1
We have fabricated ambipolar transistors on chemically prepared hydrogen-terminated Si(111) surfaces, in which a two-dimensional electron system (2DES) or a two-dimensional hole sy…
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…