Journal
PHYSICAL REVIEW B
Volume 93, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.93.245159
Keywords
-
Funding
- CINECA Supercomputing Center (Bo, Italy), from MIUR under the PRIN project OXIDES
- Brazilian research funding agency CNPq
- European Union [696656]
Ask authors/readers for more resources
It has been recently suggested that the coexistence of ferroelectricity and Rashba-like spin-splitting effects due to spin-orbit coupling in a single material may allow for a nonvolatile electric control of spin degrees of freedom. In the present work, we compared the structural and ferroelectric properties of tetragonal and rhombohedral phases of ferroelectric BiAlO3 by means of density-functional calculations. In both phases, we carefully investigated Rashba and Dresselhaus effects, giving rise to spin-splitting in their bulk electronic structure, particularly near the conduction band minimum, supplementing our first-principles results with an effective k.p model analysis. The full reversal of the spin texture with ferroelectric polarization switching was also predicted. BiAlO3 can therefore be considered as the first known oxide to exhibit a coexistence of ferroelectricity and Rashba-Dresselhaus effects.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available