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ACS Nano. 2015 Dec 22;9(12):11557-67. doi: 10.1021/acsnano.5b04409. Epub 2015 Sep 14.

Rashba and Dresselhaus Effects in Hybrid Organic-Inorganic Perovskites: From Basics to Devices.

Author information

1
Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1 35700 Rennes, France.
2
ICN2 - Institut Catala de Nanociencia i Nanotecnologia , Campus UAB, 08193 Bellaterra, Barcelona, Spain.
3
Université Européenne de Bretagne , INSA, FOTON UMR 6082, 35708 Rennes, France.

Abstract

We use symmetry analysis, density functional theory calculations, and k·p modeling to scrutinize Rashba and Dresselhaus effects in hybrid organic-inorganic halide perovskites. These perovskites are at the center of a recent revolution in the field of photovoltaics but have also demonstrated potential for optoelectronic applications such as transistors and light emitters. Due to a large spin-orbit coupling of the most frequently used metals, they are also predicted to offer a promising avenue for spin-based applications. With an in-depth inspection of the electronic structures and bulk lattice symmetries of a variety of systems, we analyze the origin of the spin splitting in two- and three-dimensional hybrid perovskites. It is shown that low-dimensional nanostructures made of CH3NH3PbX3 (X = I, Br) lead to spin splittings that can be controlled by an applied electric field. These findings further open the door for a perovskite-based spintronics.

KEYWORDS:

DFT; Rashba; ferroelectric; nanostructure; perovskite; spin-FET; spin−orbit

PMID:
26348023
DOI:
10.1021/acsnano.5b04409

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