TY - JOUR
T1 - Perovskite-Type Thin Slabs
T2 - A First-Principles Study of Their Magnetic and Electronic Properties
AU - Pilo, Jorge
AU - Miranda, Alvaro
AU - Carvajal, Eliel
AU - Cruz-Irisson, Miguel
N1 - Publisher Copyright:
© 2010-2012 IEEE.
PY - 2016
Y1 - 2016
N2 - The development of spintronic devices is the most promising and interesting way to improve conventional electronics. They will allow us to continue diminishing the devices' dimensions as well as optimizing the energy requirements for their operation. Perovskites stand out among materials that could be used in those devices because their variety permits combinations of optical, electronic, and magnetic properties. The bulk double perovskite Sr 2FeMoO6 (SFMO) is a half-metallic system that has become very attractive after the Kobayashi report about their high Curie temperature (about 470 K). SFMO has been used to build solid oxide fuel cell electrodes, but this compound could be used as a laminar system in the development of spintronic devices because of its high spin polarization. This proposal has been motivated by the exploitation of the magnetoresistive response in manganite applications and the reported experimental work on perovskite thin films. The inclusion of SFMO laminar systems in spintronic devices could affect magnetic-Tunnel-junction-like devices. From a crystalline SFMO model system, thin slabs were excised and a supercell was built for each system, setting the appropriate initial separation between image slabs along the [001] direction. The geometry optimization and magnetic and electronic properties (density of states, band structures, and magnetic moment distribution) were calculated in the density functional theory scheme using the local density approximation with the Hubbard parameter (LDA + U).
AB - The development of spintronic devices is the most promising and interesting way to improve conventional electronics. They will allow us to continue diminishing the devices' dimensions as well as optimizing the energy requirements for their operation. Perovskites stand out among materials that could be used in those devices because their variety permits combinations of optical, electronic, and magnetic properties. The bulk double perovskite Sr 2FeMoO6 (SFMO) is a half-metallic system that has become very attractive after the Kobayashi report about their high Curie temperature (about 470 K). SFMO has been used to build solid oxide fuel cell electrodes, but this compound could be used as a laminar system in the development of spintronic devices because of its high spin polarization. This proposal has been motivated by the exploitation of the magnetoresistive response in manganite applications and the reported experimental work on perovskite thin films. The inclusion of SFMO laminar systems in spintronic devices could affect magnetic-Tunnel-junction-like devices. From a crystalline SFMO model system, thin slabs were excised and a supercell was built for each system, setting the appropriate initial separation between image slabs along the [001] direction. The geometry optimization and magnetic and electronic properties (density of states, band structures, and magnetic moment distribution) were calculated in the density functional theory scheme using the local density approximation with the Hubbard parameter (LDA + U).
KW - Nanomagnetics
KW - Sr-Fe-Mo-O
KW - density functional theory
KW - half-metals
KW - perovskites
UR - http://www.scopus.com/inward/record.url?scp=85027586698&partnerID=8YFLogxK
U2 - 10.1109/LMAG.2016.2604216
DO - 10.1109/LMAG.2016.2604216
M3 - Artículo
SN - 1949-307X
VL - 7
SP - 1
EP - 3
JO - IEEE Magnetics Letters
JF - IEEE Magnetics Letters
ER -