Uniaxial contribution to the magnetic anisotropy of La0.67Sr0.33MnO3 thin films induced by orthorhombic crystal structure

J.A. Boschker, M. Mathews, Peter Brinks, Evert Pieter Houwman, Arturas Vailionis, Gertjan Koster, David H.A. Blank, Augustinus J.H.M. Rijnders

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

La0.67Sr33MnO3 (LSMO) thin films under compressive strain have an orthorhombic symmetry with View the MathML source(11¯0)o and View the MathML source(001)o in-plane orientations. (The subscript o denotes the orthorhombic symmetry.) Here, we grew LSMO on cubic (LaAlO3)0.3—(Sr2AlTaO6)0.7 (LSAT) substrates and observed a uniaxial contribution to the magnetic anisotropy which is related to the orthorhombic crystal structure. Since the lattice mismatch is equal in the two directions, the general understanding of anisotropy in LSMO, which relates the uniaxial anisotropy to differences in strain, cannot explain the results. These findings suggest that the oxygen octahedra rotations associated with the orthorhombic structure result in a change in magnetic coupling between the View the MathML source[11¯0]o and [0 0 1]o directions, which determines the anisotropy. We expect these findings to lead to a better understanding of the microscopic origin of the magnetocrystalline anisotropy in LSMO.
Original languageUndefined
Pages (from-to)2632-2638
Number of pages7
JournalJournal of magnetism and magnetic materials
Volume323
Issue number21
DOIs
Publication statusPublished - 2011

Keywords

  • METIS-280143
  • IR-104429

Cite this

@article{b7f1398a87a24bd6a2b26ffbe8d7b281,
title = "Uniaxial contribution to the magnetic anisotropy of La0.67Sr0.33MnO3 thin films induced by orthorhombic crystal structure",
abstract = "La0.67Sr33MnO3 (LSMO) thin films under compressive strain have an orthorhombic symmetry with View the MathML source(11¯0)o and View the MathML source(001)o in-plane orientations. (The subscript o denotes the orthorhombic symmetry.) Here, we grew LSMO on cubic (LaAlO3)0.3—(Sr2AlTaO6)0.7 (LSAT) substrates and observed a uniaxial contribution to the magnetic anisotropy which is related to the orthorhombic crystal structure. Since the lattice mismatch is equal in the two directions, the general understanding of anisotropy in LSMO, which relates the uniaxial anisotropy to differences in strain, cannot explain the results. These findings suggest that the oxygen octahedra rotations associated with the orthorhombic structure result in a change in magnetic coupling between the View the MathML source[11¯0]o and [0 0 1]o directions, which determines the anisotropy. We expect these findings to lead to a better understanding of the microscopic origin of the magnetocrystalline anisotropy in LSMO.",
keywords = "METIS-280143, IR-104429",
author = "J.A. Boschker and M. Mathews and Peter Brinks and Houwman, {Evert Pieter} and Arturas Vailionis and Gertjan Koster and Blank, {David H.A.} and Rijnders, {Augustinus J.H.M.}",
year = "2011",
doi = "10.1016/j.jmmm.2011.05.051",
language = "Undefined",
volume = "323",
pages = "2632--2638",
journal = "Journal of magnetism and magnetic materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "21",

}

Uniaxial contribution to the magnetic anisotropy of La0.67Sr0.33MnO3 thin films induced by orthorhombic crystal structure. / Boschker, J.A.; Mathews, M.; Brinks, Peter; Houwman, Evert Pieter; Vailionis, Arturas; Koster, Gertjan; Blank, David H.A.; Rijnders, Augustinus J.H.M.

In: Journal of magnetism and magnetic materials, Vol. 323, No. 21, 2011, p. 2632-2638.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Uniaxial contribution to the magnetic anisotropy of La0.67Sr0.33MnO3 thin films induced by orthorhombic crystal structure

AU - Boschker, J.A.

AU - Mathews, M.

AU - Brinks, Peter

AU - Houwman, Evert Pieter

AU - Vailionis, Arturas

AU - Koster, Gertjan

AU - Blank, David H.A.

AU - Rijnders, Augustinus J.H.M.

PY - 2011

Y1 - 2011

N2 - La0.67Sr33MnO3 (LSMO) thin films under compressive strain have an orthorhombic symmetry with View the MathML source(11¯0)o and View the MathML source(001)o in-plane orientations. (The subscript o denotes the orthorhombic symmetry.) Here, we grew LSMO on cubic (LaAlO3)0.3—(Sr2AlTaO6)0.7 (LSAT) substrates and observed a uniaxial contribution to the magnetic anisotropy which is related to the orthorhombic crystal structure. Since the lattice mismatch is equal in the two directions, the general understanding of anisotropy in LSMO, which relates the uniaxial anisotropy to differences in strain, cannot explain the results. These findings suggest that the oxygen octahedra rotations associated with the orthorhombic structure result in a change in magnetic coupling between the View the MathML source[11¯0]o and [0 0 1]o directions, which determines the anisotropy. We expect these findings to lead to a better understanding of the microscopic origin of the magnetocrystalline anisotropy in LSMO.

AB - La0.67Sr33MnO3 (LSMO) thin films under compressive strain have an orthorhombic symmetry with View the MathML source(11¯0)o and View the MathML source(001)o in-plane orientations. (The subscript o denotes the orthorhombic symmetry.) Here, we grew LSMO on cubic (LaAlO3)0.3—(Sr2AlTaO6)0.7 (LSAT) substrates and observed a uniaxial contribution to the magnetic anisotropy which is related to the orthorhombic crystal structure. Since the lattice mismatch is equal in the two directions, the general understanding of anisotropy in LSMO, which relates the uniaxial anisotropy to differences in strain, cannot explain the results. These findings suggest that the oxygen octahedra rotations associated with the orthorhombic structure result in a change in magnetic coupling between the View the MathML source[11¯0]o and [0 0 1]o directions, which determines the anisotropy. We expect these findings to lead to a better understanding of the microscopic origin of the magnetocrystalline anisotropy in LSMO.

KW - METIS-280143

KW - IR-104429

U2 - 10.1016/j.jmmm.2011.05.051

DO - 10.1016/j.jmmm.2011.05.051

M3 - Article

VL - 323

SP - 2632

EP - 2638

JO - Journal of magnetism and magnetic materials

JF - Journal of magnetism and magnetic materials

SN - 0304-8853

IS - 21

ER -