The effective mass at the Fermi level is measured in the strongly interacting two-dimensional
(2D) electron system in ultra-clean SiGe/Si/SiGe quantum wells in the low-temperature limit …

Electrons (or holes) confined in two-dimensional (2D) semiconductor layers have served as
model systems for studying disorder and interaction effects for almost 50 years. In particular …

We review recent experimental results on the metal–insulator transition and low-density
phases in strongly-interacting, low-disordered silicon-based two-dimensional electron …

We report the magneto-conductivity in a disordered 2D p-SiGe quantum well with
interactions, which allows the weak anti-localization and the Zeeman effect to be ignored …

We investigate metal-insulator transitions on an interacting two-dimensional Dirac fermion
system using the determinant quantum Monte Carlo method. The interplay between …

We have developed a technique that dramatically reduces the contact resistances and
depletes a shunting channel between the contacts outside the Hall bar in ultra-high mobility …

We observe that in a strongly interacting two-dimensional electron system in ultraclean
SiGe/Si/SiGe quantum wells, the resistivity on the metallic side near the metal-insulator …

The increase in the resistivity with decreasing temperature followed by a drop by more than
one order of magnitude is observed on the metallic side near the zero-magnetic-field metal …

Using several independent methods, we find that the metal-insulator transition occurs in the
strongly-interacting two-valley two-dimensional electron system in ultra-high mobility …

The Infinitesimal Calculus explores mainly two measurements: the instantaneous rates of
change and the accumulation of quantities. This work shows that scientists, engineers …