Enhancement of Rashba spin–orbit coupling by electron–electron interaction

Enhancement of Rashba coupling in vertical In0.05Ga0.95As/GaAs quantum dots

S. M. Huang,1,2,* A. O. Badrutdinov,1,3 L. Serra,4,5 T. Kodera,6,7 T. Nakaoka,6,7,8 N. Kumagai,6,7 Y. Arakawa,6,7 D. A. Tayurskii,3 K. Kono,1 and K. Ono1,9 1Low Temperature Physics Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan 2Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, Republic of China 3Physics Department, Kazan Federal University, 420008, Kazan, R...

Rashba coupling amplification by a staggered crystal field.

There has been increasing interest in materials where relativistic effects induce non-trivial electronic states with promise for spintronics applications. One example is the splitting of bands with opposite spin chirality produced by the Rashba spin-orbit coupling in asymmetric potentials. Sizable splittings have been hitherto obtained using either heavy elements, where this coupling is intrins...

New perspectives for Rashba spin-orbit coupling.

In 1984, Bychkov and Rashba introduced a simple form of spin-orbit coupling to explain the peculiarities of electron spin resonance in two-dimensional semiconductors. Over the past 30 years, Rashba spin-orbit coupling has inspired a vast number of predictions, discoveries and innovative concepts far beyond semiconductors. The past decade has been particularly creative, with the realizations of ...

Competition between spin-orbit interaction and Zeeman coupling in Rashba two-dimensional electron gases

Intrinsic instability of electronic interfaces with strong Rashba coupling.

We consider a model for the two-dimensional electron gas formed at the interface of oxide heterostructures, which includes a Rashba spin-orbit coupling proportional to the electric field perpendicular to the interface. Based on the standard mechanism of polarity catastrophe, we assume that the electric field has a contribution proportional to the electron density. Under these simple and general...