Anisotropic two-dimensional electron gas at SrTiO3(110)

Two dimensional electron gas at oxide interfaces

Anisotropic two-dimensional electron gas at the LaAlO3/SrTiO3 (110) interface

The observation of a high-mobility two-dimensional electron gas between two insulating complex oxides, especially LaAlO₃/SrTiO₃, has enhanced the potential of oxides for electronics. The occurrence of this conductivity is believed to be driven by polarization discontinuity, leading to an electronic reconstruction. In this scenario, the crystal orientation has an important role and no conductivi...

Spin-polarized two-dimensional electron gas at oxide interfaces.

The possibility of formation of a fully spin-polarized 2D electron gas at the SrMnO_3/(LaMnO_3)_1/SrMnO_3 heterostructure is predicted from density-functional calculations. The La(d) electrons become confined in the direction normal to the interface in the electrostatic potential well of the positively charged layer of La atoms, acting as electron donors. These electrons mediate a ferromagnetic...

Anisotropic plasmons in a two-dimensional electron gas with spin-orbit interaction

S. M. Badalyan,1,2,* A. Matos-Abiague,2 G. Vignale,3 and J. Fabian2 1Department of Radiophysics, Yerevan State University, 1 A. Manoukian Street, Yerevan 375025, Armenia 2Department of Physics, University of Regensburg, 93040 Regensburg, Germany 3Department of Physics and Astronomy, University of Missouri–Columbia, Columbia, Missouri 65211, USA Received 9 February 2009; revised manuscript recei...

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 ,...