Rashba and Dresselhaus Effects in Hybrid Organic-Inorganic Perovskites : From Basics to Devices
Kepenekian, Mikaël (Institut des Sciences Chimiques de Rennes)
Robles, Roberto (Institut Català de Nanociència i Nanotecnologia)
Katan, Claudine (Institut des Sciences Chimiques de Rennes)
Sapori, Daniel (Université Européenne de Bretagne)
Pedesseau, Laurent (Université Européenne de Bretagne)
Even, Jacky (Université Européenne de Bretagne)

Data:	2015
Resum:	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 CHNHPbX (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.
Ajuts:	Ministerio de Economía y Competitividad SEV-2013-0295
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Publicat a:	ACS nano, Vol. 9, Num. 12 (September 2015) , p. 11557-11567, ISSN 1936-086X

DOI: 10.1021/acsnano.5b04409

Postprint 34 p, 3.5 MB

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