Atomistic geometry and bonding characteristics at the Sr 2FeTaO6/SrTiO3 interface

Shuhui Lv; Mitsuhiro Saito; Zhongchang Wang; Suvankar Chakraverty; Masashi Kawasaki; Yuichi Ikuhara

doi:10.1063/1.4809536

Atomistic geometry and bonding characteristics at the Sr ₂FeTaO₆/SrTiO₃ interface

Shuhui Lv
, Mitsuhiro Saito
, Zhongchang Wang
, Suvankar Chakraverty
, Masashi Kawasaki
, Yuichi Ikuhara

Tohoku University
RIKENCenter for Emergent Matter Science (CEMS)
The University of Tokyo

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Oxide heterointerfaces with broken translational symmetry offer a fertile ground for exploring fascinating physical properties that are absent in bulk constituents. Here, we apply advanced transmission electron microscopy to the Sr₂FeTaO₆/SrTiO₃ interface and elucidate that the deposited Sr₂FeTaO₆ thin film bonds directly to the SrTiO₃ substrate in an epitaxial, coherent, and atomically abrupt way. Combined with density-functional-theory calculations, we determine the explicit interface atomistic structure, the exact valence state of transition metals, the covalent interfacial bonding nature, and identify the antiferromagnetic superexchange magnetic coupling path between Fe ions as Fe-O-Ta-O-Fe.

Original language	English
Article number	221602
Journal	Applied Physics Letters
Volume	102
Issue number	22
DOIs	https://doi.org/10.1063/1.4809536
State	Published - 3 Jun 2013
Externally published	Yes

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10.1063/1.4809536

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title = "Atomistic geometry and bonding characteristics at the Sr 2FeTaO6/SrTiO3 interface",

abstract = "Oxide heterointerfaces with broken translational symmetry offer a fertile ground for exploring fascinating physical properties that are absent in bulk constituents. Here, we apply advanced transmission electron microscopy to the Sr2FeTaO6/SrTiO3 interface and elucidate that the deposited Sr2FeTaO6 thin film bonds directly to the SrTiO3 substrate in an epitaxial, coherent, and atomically abrupt way. Combined with density-functional-theory calculations, we determine the explicit interface atomistic structure, the exact valence state of transition metals, the covalent interfacial bonding nature, and identify the antiferromagnetic superexchange magnetic coupling path between Fe ions as Fe-O-Ta-O-Fe.",

author = "Shuhui Lv and Mitsuhiro Saito and Zhongchang Wang and Suvankar Chakraverty and Masashi Kawasaki and Yuichi Ikuhara",

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T1 - Atomistic geometry and bonding characteristics at the Sr 2FeTaO6/SrTiO3 interface

AU - Lv, Shuhui

AU - Saito, Mitsuhiro

AU - Wang, Zhongchang

AU - Chakraverty, Suvankar

AU - Kawasaki, Masashi

AU - Ikuhara, Yuichi

PY - 2013/6/3

Y1 - 2013/6/3

N2 - Oxide heterointerfaces with broken translational symmetry offer a fertile ground for exploring fascinating physical properties that are absent in bulk constituents. Here, we apply advanced transmission electron microscopy to the Sr2FeTaO6/SrTiO3 interface and elucidate that the deposited Sr2FeTaO6 thin film bonds directly to the SrTiO3 substrate in an epitaxial, coherent, and atomically abrupt way. Combined with density-functional-theory calculations, we determine the explicit interface atomistic structure, the exact valence state of transition metals, the covalent interfacial bonding nature, and identify the antiferromagnetic superexchange magnetic coupling path between Fe ions as Fe-O-Ta-O-Fe.

AB - Oxide heterointerfaces with broken translational symmetry offer a fertile ground for exploring fascinating physical properties that are absent in bulk constituents. Here, we apply advanced transmission electron microscopy to the Sr2FeTaO6/SrTiO3 interface and elucidate that the deposited Sr2FeTaO6 thin film bonds directly to the SrTiO3 substrate in an epitaxial, coherent, and atomically abrupt way. Combined with density-functional-theory calculations, we determine the explicit interface atomistic structure, the exact valence state of transition metals, the covalent interfacial bonding nature, and identify the antiferromagnetic superexchange magnetic coupling path between Fe ions as Fe-O-Ta-O-Fe.

UR - https://www.scopus.com/pages/publications/84879126258

U2 - 10.1063/1.4809536

DO - 10.1063/1.4809536

M3 - 文章

AN - SCOPUS:84879126258

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

M1 - 221602

ER -

Atomistic geometry and bonding characteristics at the Sr ₂FeTaO₆/SrTiO₃ interface

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