Tilted Magnetic Anisotropy with In-Plane Broken Symmetry in Ru-Substituted Manganite Films

Brajagopal Das; Lena Wysocki; Jörg Schöpf; Lin Yang; Amir Capua; Paul H.M. van Loosdrecht; Lior Kornblum

doi:10.1002/aelm.202300253

Tilted Magnetic Anisotropy with In-Plane Broken Symmetry in Ru-Substituted Manganite Films

Brajagopal Das^*, Lena Wysocki, Jörg Schöpf, Lin Yang, Amir Capua, Paul H.M. van Loosdrecht, Lior Kornblum^*

^*Corresponding author for this work

Department of Applied Physics

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

Abstract

Controlling the magnetic anisotropy of materials is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based devices. Ru-substituted La_0.7Sr_0.3MnO₃ (Ru-LSMO) is an emerging material, showing tilted magnetic anisotropy (TMA) and possible nontrivial magnetic topologies. Here anisotropic in-plane magnetization is reported in moderately compressed Ru-LSMO films, coexisting with TMA. This combination is attractive for technological applications, such as spin-orbit torque (SOT) based devices and other spintronic applications. A microstructural analysis of films of this material is presented, and Ru single ion anisotropy and strain-induced structural mechanisms are found to be responsible for both the in-plane anisotropy and the TMA. The manifestation of these properties in a correlated oxide with Curie temperature near room temperature highlights an attractive platform for technological realization of SOT and other spintronic devices. Illustrating the mechanisms behind these properties provides the necessary engineering space for harnessing these phenomena for practical devices.

Original language	American English
Journal	Advanced Electronic Materials
DOIs	https://doi.org/10.1002/aelm.202300253
State	Accepted/In press - 2023

Bibliographical note

Funding Information:
This work was funded by the German Israeli Foundation (GIF Grant no. I‐1510‐303.10/2019). J.S. wishes to acknowledge his financial support from the German Research Foundation (DFG) within SFB1238, project A01 (Project No. 277146847). The authors thank Dr. Ionela Lindfors‐Vrejoiu for growing the films used here and for fruitful discussions. The authors further thank Dr. Maria Koifman Khristosov and Dr. Anna Eyal for assistance with XRD measurements and magnetometry, respectively.

Publisher Copyright:
© 2023 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.

Keywords

correlated oxides
magnetic anisotropy
magnetic oxides
manganite films
oxides microstructure

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title = "Tilted Magnetic Anisotropy with In-Plane Broken Symmetry in Ru-Substituted Manganite Films",

abstract = "Controlling the magnetic anisotropy of materials is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based devices. Ru-substituted La0.7Sr0.3MnO3 (Ru-LSMO) is an emerging material, showing tilted magnetic anisotropy (TMA) and possible nontrivial magnetic topologies. Here anisotropic in-plane magnetization is reported in moderately compressed Ru-LSMO films, coexisting with TMA. This combination is attractive for technological applications, such as spin-orbit torque (SOT) based devices and other spintronic applications. A microstructural analysis of films of this material is presented, and Ru single ion anisotropy and strain-induced structural mechanisms are found to be responsible for both the in-plane anisotropy and the TMA. The manifestation of these properties in a correlated oxide with Curie temperature near room temperature highlights an attractive platform for technological realization of SOT and other spintronic devices. Illustrating the mechanisms behind these properties provides the necessary engineering space for harnessing these phenomena for practical devices.",

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author = "Brajagopal Das and Lena Wysocki and J{\"o}rg Sch{\"o}pf and Lin Yang and Amir Capua and {van Loosdrecht}, {Paul H.M.} and Lior Kornblum",

note = "Funding Information: This work was funded by the German Israeli Foundation (GIF Grant no. I‐1510‐303.10/2019). J.S. wishes to acknowledge his financial support from the German Research Foundation (DFG) within SFB1238, project A01 (Project No. 277146847). The authors thank Dr. Ionela Lindfors‐Vrejoiu for growing the films used here and for fruitful discussions. The authors further thank Dr. Maria Koifman Khristosov and Dr. Anna Eyal for assistance with XRD measurements and magnetometry, respectively. Publisher Copyright: {\textcopyright} 2023 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.",

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language = "American English",

journal = "Advanced Electronic Materials",

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AU - Schöpf, Jörg

AU - Yang, Lin

AU - Capua, Amir

AU - van Loosdrecht, Paul H.M.

AU - Kornblum, Lior

N1 - Funding Information: This work was funded by the German Israeli Foundation (GIF Grant no. I‐1510‐303.10/2019). J.S. wishes to acknowledge his financial support from the German Research Foundation (DFG) within SFB1238, project A01 (Project No. 277146847). The authors thank Dr. Ionela Lindfors‐Vrejoiu for growing the films used here and for fruitful discussions. The authors further thank Dr. Maria Koifman Khristosov and Dr. Anna Eyal for assistance with XRD measurements and magnetometry, respectively. Publisher Copyright: © 2023 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH.

PY - 2023

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N2 - Controlling the magnetic anisotropy of materials is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based devices. Ru-substituted La0.7Sr0.3MnO3 (Ru-LSMO) is an emerging material, showing tilted magnetic anisotropy (TMA) and possible nontrivial magnetic topologies. Here anisotropic in-plane magnetization is reported in moderately compressed Ru-LSMO films, coexisting with TMA. This combination is attractive for technological applications, such as spin-orbit torque (SOT) based devices and other spintronic applications. A microstructural analysis of films of this material is presented, and Ru single ion anisotropy and strain-induced structural mechanisms are found to be responsible for both the in-plane anisotropy and the TMA. The manifestation of these properties in a correlated oxide with Curie temperature near room temperature highlights an attractive platform for technological realization of SOT and other spintronic devices. Illustrating the mechanisms behind these properties provides the necessary engineering space for harnessing these phenomena for practical devices.

AB - Controlling the magnetic anisotropy of materials is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based devices. Ru-substituted La0.7Sr0.3MnO3 (Ru-LSMO) is an emerging material, showing tilted magnetic anisotropy (TMA) and possible nontrivial magnetic topologies. Here anisotropic in-plane magnetization is reported in moderately compressed Ru-LSMO films, coexisting with TMA. This combination is attractive for technological applications, such as spin-orbit torque (SOT) based devices and other spintronic applications. A microstructural analysis of films of this material is presented, and Ru single ion anisotropy and strain-induced structural mechanisms are found to be responsible for both the in-plane anisotropy and the TMA. The manifestation of these properties in a correlated oxide with Curie temperature near room temperature highlights an attractive platform for technological realization of SOT and other spintronic devices. Illustrating the mechanisms behind these properties provides the necessary engineering space for harnessing these phenomena for practical devices.

KW - correlated oxides

KW - magnetic anisotropy

KW - magnetic oxides

KW - manganite films

KW - oxides microstructure

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JO - Advanced Electronic Materials

JF - Advanced Electronic Materials

ER -

Tilted Magnetic Anisotropy with In-Plane Broken Symmetry in Ru-Substituted Manganite Films

Abstract

Bibliographical note

Keywords

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