33 citations · 85 across the 6 of their papers we have counts for
6 papers
Using reflections to explore student learning during the project component of an advanced laboratory course
Bei Cai, Lindsay Mainhood, Robert G. Knobel
We redesigned an advanced physics laboratory course to include a project component. The intention was to address learning outcomes such as modeling, design of experiments, teamwork…
Suspension and simple optical characterization of two-dimensional membranes
David B. Northeast, Robert G. Knobel
We report on a method for suspending two-dimensional crystal materials in an electronic circuit using an only photoresists and solvents. Graphene and NbSe are suspended tens…
Feedback-controlled electromigration for the fabrication of point contacts
J. M. Campbell, R. G. Knobel
Lithographically fabricated point contacts serve as important examples of mesoscopic conductors, as electrodes for molecular electronics, and as ultra-sensitive transducers for mec…
Damping of micromechanical structures by paramagnetic relaxation
J. G. E. Harris, R. Knobel, K. D. Maranowski +3
We find that the damping of micromechanical cantilevers is sensitive to the relaxation dynamics of paramagnetic ions contained within the levers. We measure cantilevers containing…
Landau Level Crossings and Extended-State Mapping in Magnetic Two-dimensional Electron Gases
R. Knobel, N. Samarth, J. G. E. Harris +1
We present longitudinal and Hall magneto-resistance measurements of a ``magnetic'' two-dimensional electron gas (2DEG) formed in modulation-doped ZnCdMnSe qua…
Stability of trions in strongly spin-polarized two-dimensional electron gases
S. A. Crooker, E. Johnston-Halperin, D. D. Awschalom +2
Low-temperature magneto-photoluminescence studies of negatively charged excitons (X- trions) are reported for n-type modulation-doped ZnSe/Zn(Cd,Mn)Se quantum wells over a wide ran…