76 citations · 532 across the 21 of their papers we have counts for
15 papers · 1 filter
Tuning of Fermi Contour Anisotropy in GaAs (001) 2D Holes via Strain
Insun Jo, M. A. Mueed, L. N. Pfeiffer +5
We demonstrate tuning of the Fermi contour anisotropy of two-dimensional (2D) holes in a symmetric GaAs (001) quantum well via the application of in-plane strain. The ballistic tra…
Transference of Fermi Contour Anisotropy to Composite Fermions
Insun Jo, K. A. Villegas Rosales, M. A. Mueed +6
There has been a surge of recent interest in the role of anisotropy in interaction-induced phenomena in two-dimensional (2D) charged carrier systems. A fundamental question is how…
Effective Mass and Spin Susceptibility of Dilute Two-Dimensional Holes in GaAs
YenTing Chiu, Medini Padmanabhan, T. Gokmen +4
We report effective hole mass () measurements through analyzing the temperature dependence of Shubnikov-de Haas oscillations in dilute (density cm$…
Transference of Transport Anisotropy to Composite Fermions
T. Gokmen, Medini Padmanabhan, M. Shayegan
When interacting two-dimensional electrons are placed in a large perpendicular magnetic field, to minimize their energy, they capture an even number of flux quanta and create new p…
Temperature dependence of piezoresistance of composite Fermions with a valley degree of freedom
T. Gokmen, Medini Padmanabhan, M. Shayegan
We report transport measurements of composite Fermions at filling factor in AlAs quantum wells as a function of strain and temperature. In this system the composite Fermion…
Contrast between spin and valley degrees of freedom
T. Gokmen, Medini Padmanabhan, M. Shayegan
We measure the renormalized effective mass (m*) of interacting two-dimensional electrons confined to an AlAs quantum well while we control their distribution between two spin and t…