Spin-Polarized Two-Dimensional Electron Gas at Oxide Interfaces

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...

Two dimensional electron gas at oxide interfaces

Towards spin-polarized two-dimensional electron gas at a surface of an antiferromagnetic insulating oxide

Rohan Mishra,1,2,3,* Young-Min Kim,2,4,5 Qian He,2 Xing Huang,3 Seong Keun Kim,6,7 Michael A. Susner,2 Anand Bhattacharya,6,8 Dillon D. Fong,6 Sokrates T. Pantelides,1,2 and Albina Y. Borisevich2 1Deparment of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA 2Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3D...

Prediction of a spin-polarized two-dimensional electron gas at the LaAlO3/EuO(001) interface

Prediction of a switchable two-dimensional electron gas at ferroelectric oxide interfaces.

The demonstration of a quasi-two-dimensional electron gas (2DEG) in LaAlO3/SrTiO3 heterostructures has stimulated intense research activity in recent years. The 2DEG has unique properties that are promising for applications in all-oxide electronic devices. For such applications it is desirable to have the ability to control 2DEG properties by external stimulus. Here, based on first-principles c...