Chang-Woo Cho

collaborators

2 papers

cond-mat.mes-hall2026

Optical control of conductivity type and valley polarization via persistent photoconductivity in (Pb,Sn)Se quantum wells

Alexander Kazakov, Gauthier Krizman, Valentine V. Volobuev +8

The ability to tune the Fermi level of semiconductors is at the heart of modern electronics. Here, we demonstrate that persistent photoconductivity (PPC) enables tuning of carrier…

cond-mat.mes-hall2025

Topological phase diagram and quantum magnetotransport effects in (Pb,Sn)Se quantum wells with magnetic barriers (Pb,Eu)Se

Alexander Kazakov, Valentine V. Volobuev, Chang-Woo Cho +6

In this study, we report here on a successful growth by molecular beam epitaxy of high crystalline quality Pb $_{1 - x}$ Sn $_{x}$ Se:Bi/Pb $_{1 - y}$ Eu $_{y}$ Se QWs with $x = 0.25$ and $y =…