Nongalvanic primary thermometry of a two-dimensional electron gas

Two-dimensional electron gas near full polarization

We establish the consistency of the Fermi liquid description and find a relation between the Fermi liquid constants for a two-dimensional electron system near the point of full polarization due to a parallel magnetic field H. Our results enable us to predict connections between different thermodynamic properties of the system. In particular, we find that near the point of full polarization Hc ,...

Two dimensional electron gas at oxide interfaces

Interaction-induced magnetization of a two-dimensional electron gas

We consider the contribution of electron-electron interactions to the orbital magnetization of a twodimensional electron gas, focusing on the ballistic limit in the regime of negligible Landau-level spacing. This regime can be described by combining diagrammatic perturbation theory with semiclassical techniques. At sufficiently low temperatures, the interaction-induced magnetization overwhelms ...

Compressibility of a two-dimensional electron gas under microwave radiation

M. G. Vavilov,1 I. A. Dmitriev,2,* I. L. Aleiner,3 A. D. Mirlin,2,4,† and D. G. Polyakov2,* 1Center for Materials Sciences and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 2Institut für Nanotechnologie, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany 3Physics Department, Columbia University, New York, New York 10027, USA 4Institut für Theorie der...

Coulomb scattering lifetime of a two-dimensional electron gas.

Motivated by a recent tunneling experiment in a double quantum-well system, which reports an anomalously enhanced electronic scattering rate in a clean two-dimensional electron gas, we calculate the inelastic quasiparticle lifetime due to electron-electron interaction in a single loop dynamically screened Coulomb interaction within the random-phase-approximation. We obtain excellent quantitativ...