4 papers
Spin effect on the low-temperature resistivity maximum in a strongly interacting 2D electron system
A. A. Shashkin, M. Yu. Melnikov, V. T. Dolgopolov +6
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 met…
Manifestation of strong correlations in transport in ultra-clean SiGe/Si/SiGe quantum wells
A. A. Shashkin, M. Yu. Melnikov, V. T. Dolgopolov +6
We observe that in a strongly interacting two-dimensional electron system in ultra-clean SiGe/Si/SiGe quantum wells, the resistivity on the metallic side near the metal-insulator t…
Metallic state in a strongly interacting spinless two-valley electron system in two dimensions
M. Yu. Melnikov, A. A. Shashkin, V. T. Dolgopolov +4
We have studied the strongly interacting, two-valley two-dimensional (2D) electron system in ultrahigh mobility SiGe/Si/SiGe quantum wells in parallel magnetic fields strong enough…
Quantum phase transition in ultrahigh mobility SiGe/Si/SiGe two-dimensional electron system
M. Yu. Melnikov, A. A. Shashkin, V. T. Dolgopolov +4
The metal-insulator transition (MIT) is an exceptional test bed for studying strong electron correlations in two dimensions in the presence of disorder. In the present study, it is…