Growth-sequence-dependent interface magnetism of SrIrO3-La0.7Sr0.3MnO3 bilayers

L. Bergmann; P. Düring; S. Agrestini; A. Efimenko; S. C. Liao; Z. Hu; P. Gargiani; C. J. Choi; H. Baik; D. S. Park; K. Dörr; A. D. Rata

doi:10.1063/1.5143713

Growth-sequence-dependent interface magnetism of SrIrO₃-La_0.7Sr_0.3MnO₃ bilayers

L. Bergmann
, P. Düring
, S. Agrestini
, A. Efimenko
, S. C. Liao
, Z. Hu
, P. Gargiani
, C. J. Choi
, H. Baik
, D. S. Park
, K. Dörr
, A. D. Rata^*

^*Corresponding author for this work

Department of Semiconductor Science and Technology

Martin Luther University Halle-Wittenberg
ALBA Synchrotron Light Source
Max Planck Institute for Chemical Physics of Solids
European Synchrotron Radiation Facility
Korea Basic Science Institute
Swiss Federal Institute of Technology Lausanne

Research output: Contribution to journal › Journal article › peer-review

3 Scopus citations

Abstract

Bilayers of the oxide 3d ferromagnet La_0.7Sr_0.3MnO₃ (LSMO) and the 5d paramagnet SrIrO₃ (SIO) with large spin-orbit coupling (SOC) have been investigated regarding the impact of interfacial SOC on magnetic order. For the growth sequence of LSMO on SIO, ferromagnetism is strongly altered and large out-of-plane-canted anisotropy associated with lacking magnetic saturation up to 4 T has been observed. Thin bilayer films have been grown coherently in both growth sequences on SrTiO₃ (001) by pulsed laser deposition and structurally characterized by scanning transmission electron microscopy and x-ray diffraction. Measurements of magnetization and field-dependent Mn L_2,3 edge x-ray magnetic circular dichroism reveal changes of the LSMO magnetic order, which are strong in LSMO on SIO and weak in LSMO underneath SIO. We attribute the impact of the growth sequence to the interfacial lattice structure, which is known to influence the interfacial magnetic coupling governed by MnO₆ octahedral rotations and/or distortions.

Original language	English
Article number	035132
Journal	AIP Advances
Volume	10
Issue number	3
DOIs	https://doi.org/10.1063/1.5143713
State	Published - 2020.03.1

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Physics & Astronomy

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@article{3de063a8300543bd99d099e98fc98165,

title = "Growth-sequence-dependent interface magnetism of SrIrO3-La0.7Sr0.3MnO3 bilayers",

abstract = "Bilayers of the oxide 3d ferromagnet La0.7Sr0.3MnO3 (LSMO) and the 5d paramagnet SrIrO3 (SIO) with large spin-orbit coupling (SOC) have been investigated regarding the impact of interfacial SOC on magnetic order. For the growth sequence of LSMO on SIO, ferromagnetism is strongly altered and large out-of-plane-canted anisotropy associated with lacking magnetic saturation up to 4 T has been observed. Thin bilayer films have been grown coherently in both growth sequences on SrTiO3 (001) by pulsed laser deposition and structurally characterized by scanning transmission electron microscopy and x-ray diffraction. Measurements of magnetization and field-dependent Mn L2,3 edge x-ray magnetic circular dichroism reveal changes of the LSMO magnetic order, which are strong in LSMO on SIO and weak in LSMO underneath SIO. We attribute the impact of the growth sequence to the interfacial lattice structure, which is known to influence the interfacial magnetic coupling governed by MnO6 octahedral rotations and/or distortions.",

author = "L. Bergmann and P. D{\"u}ring and S. Agrestini and A. Efimenko and Liao, \{S. C.\} and Z. Hu and P. Gargiani and Choi, \{C. J.\} and H. Baik and Park, \{D. S.\} and K. D{\"o}rr and Rata, \{A. D.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

month = mar,

day = "1",

doi = "10.1063/1.5143713",

language = "English",

volume = "10",

journal = "AIP Advances",

issn = "2158-3226",

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TY - JOUR

T1 - Growth-sequence-dependent interface magnetism of SrIrO3-La0.7Sr0.3MnO3 bilayers

AU - Bergmann, L.

AU - Düring, P.

AU - Agrestini, S.

AU - Efimenko, A.

AU - Liao, S. C.

AU - Hu, Z.

AU - Gargiani, P.

AU - Choi, C. J.

AU - Baik, H.

AU - Park, D. S.

AU - Dörr, K.

AU - Rata, A. D.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Bilayers of the oxide 3d ferromagnet La0.7Sr0.3MnO3 (LSMO) and the 5d paramagnet SrIrO3 (SIO) with large spin-orbit coupling (SOC) have been investigated regarding the impact of interfacial SOC on magnetic order. For the growth sequence of LSMO on SIO, ferromagnetism is strongly altered and large out-of-plane-canted anisotropy associated with lacking magnetic saturation up to 4 T has been observed. Thin bilayer films have been grown coherently in both growth sequences on SrTiO3 (001) by pulsed laser deposition and structurally characterized by scanning transmission electron microscopy and x-ray diffraction. Measurements of magnetization and field-dependent Mn L2,3 edge x-ray magnetic circular dichroism reveal changes of the LSMO magnetic order, which are strong in LSMO on SIO and weak in LSMO underneath SIO. We attribute the impact of the growth sequence to the interfacial lattice structure, which is known to influence the interfacial magnetic coupling governed by MnO6 octahedral rotations and/or distortions.

AB - Bilayers of the oxide 3d ferromagnet La0.7Sr0.3MnO3 (LSMO) and the 5d paramagnet SrIrO3 (SIO) with large spin-orbit coupling (SOC) have been investigated regarding the impact of interfacial SOC on magnetic order. For the growth sequence of LSMO on SIO, ferromagnetism is strongly altered and large out-of-plane-canted anisotropy associated with lacking magnetic saturation up to 4 T has been observed. Thin bilayer films have been grown coherently in both growth sequences on SrTiO3 (001) by pulsed laser deposition and structurally characterized by scanning transmission electron microscopy and x-ray diffraction. Measurements of magnetization and field-dependent Mn L2,3 edge x-ray magnetic circular dichroism reveal changes of the LSMO magnetic order, which are strong in LSMO on SIO and weak in LSMO underneath SIO. We attribute the impact of the growth sequence to the interfacial lattice structure, which is known to influence the interfacial magnetic coupling governed by MnO6 octahedral rotations and/or distortions.

UR - https://www.scopus.com/pages/publications/85082938329

U2 - 10.1063/1.5143713

DO - 10.1063/1.5143713

M3 - Journal article

AN - SCOPUS:85082938329

SN - 2158-3226

VL - 10

JO - AIP Advances

JF - AIP Advances

IS - 3

M1 - 035132

ER -

Growth-sequence-dependent interface magnetism of SrIrO₃-La_0.7Sr_0.3MnO₃ bilayers

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