Tilted magnetization of a La0.7Sr0.3MnO 3/LaAlO3 (001) thin film

M. Liebmann; U. Kaiser; A. Schwarz; R. Wiesendanger; U. H. Pi; T. W. Noh; Z. G. Khim; D. W. Kim

doi:10.1016/j.jmmm.2004.02.022

Tilted magnetization of a La_0.7Sr_0.3MnO ₃/LaAlO₃ (001) thin film

M. Liebmann, U. Kaiser, A. Schwarz, R. Wiesendanger, U. H. Pi, T. W. Noh, Z. G. Khim, D. W. Kim

Department of Physics

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

6 Scopus citations

Abstract

A La_0.7Sr_0.3MnO₃ thin film epitaxially grown on a LaAlO₃ (001) substrate by pulsed laser deposition has been investigated by means of low-temperature magnetic force microscopy under high stability conditions. The ferromagnetic film exhibits a stress-induced perpendicular easy axis of magnetization. The domain structure was imaged at zero field after (i) thermal demagnetization, (ii) saturation in an in-plane field and (iii) saturation in an out-of-plane magnetic field, respectively. Stripe domains were observed in all cases, however, contrast and domain width are increased after out-of-plane saturation while alignment of stripe domains in field direction occurs after in-plane saturation. A quantitative analysis of the image contrast suggests a variable in-plane component of the magnetization, dependent on the magnetic history of the sample. Calculations of domain width and contrast from the relevant energy contributions are compared with experimental results.

Original language	English
Pages (from-to)	51-59
Number of pages	9
Journal	Journal of Magnetism and Magnetic Materials
Volume	280
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2004.02.022
State	Published - Sep 2004

Bibliographical note

Funding Information:
Financial support from the Deutsche Forschungsgemeinschaft (Grant No. Wi 1277/18-1 and through the Graduiertenkolleg “Physik nanostrukturierter Festkörper”), from the Ministry of Education through the BK21 program, and from the Ministry of Science and Technology, South Korea, is gratefully acknowledged.

Keywords

Domain structure
Magnetic force microscopy
Manganites
Stripe domains
Thin films

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10.1016/j.jmmm.2004.02.022

Cite this

@article{3646e6442dfb42eb8110650726824ba3,

title = "Tilted magnetization of a La0.7Sr0.3MnO 3/LaAlO3 (001) thin film",

abstract = "A La0.7Sr0.3MnO3 thin film epitaxially grown on a LaAlO3 (001) substrate by pulsed laser deposition has been investigated by means of low-temperature magnetic force microscopy under high stability conditions. The ferromagnetic film exhibits a stress-induced perpendicular easy axis of magnetization. The domain structure was imaged at zero field after (i) thermal demagnetization, (ii) saturation in an in-plane field and (iii) saturation in an out-of-plane magnetic field, respectively. Stripe domains were observed in all cases, however, contrast and domain width are increased after out-of-plane saturation while alignment of stripe domains in field direction occurs after in-plane saturation. A quantitative analysis of the image contrast suggests a variable in-plane component of the magnetization, dependent on the magnetic history of the sample. Calculations of domain width and contrast from the relevant energy contributions are compared with experimental results.",

keywords = "Domain structure, Magnetic force microscopy, Manganites, Stripe domains, Thin films",

author = "M. Liebmann and U. Kaiser and A. Schwarz and R. Wiesendanger and Pi, {U. H.} and Noh, {T. W.} and Khim, {Z. G.} and Kim, {D. W.}",

note = "Funding Information: Financial support from the Deutsche Forschungsgemeinschaft (Grant No. Wi 1277/18-1 and through the Graduiertenkolleg “Physik nanostrukturierter Festk{\"o}rper”), from the Ministry of Education through the BK21 program, and from the Ministry of Science and Technology, South Korea, is gratefully acknowledged. ",

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language = "English",

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journal = "Journal of Magnetism and Magnetic Materials",

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T1 - Tilted magnetization of a La0.7Sr0.3MnO 3/LaAlO3 (001) thin film

AU - Liebmann, M.

AU - Kaiser, U.

AU - Schwarz, A.

AU - Wiesendanger, R.

AU - Pi, U. H.

AU - Noh, T. W.

AU - Khim, Z. G.

AU - Kim, D. W.

N1 - Funding Information: Financial support from the Deutsche Forschungsgemeinschaft (Grant No. Wi 1277/18-1 and through the Graduiertenkolleg “Physik nanostrukturierter Festkörper”), from the Ministry of Education through the BK21 program, and from the Ministry of Science and Technology, South Korea, is gratefully acknowledged.

PY - 2004/9

Y1 - 2004/9

N2 - A La0.7Sr0.3MnO3 thin film epitaxially grown on a LaAlO3 (001) substrate by pulsed laser deposition has been investigated by means of low-temperature magnetic force microscopy under high stability conditions. The ferromagnetic film exhibits a stress-induced perpendicular easy axis of magnetization. The domain structure was imaged at zero field after (i) thermal demagnetization, (ii) saturation in an in-plane field and (iii) saturation in an out-of-plane magnetic field, respectively. Stripe domains were observed in all cases, however, contrast and domain width are increased after out-of-plane saturation while alignment of stripe domains in field direction occurs after in-plane saturation. A quantitative analysis of the image contrast suggests a variable in-plane component of the magnetization, dependent on the magnetic history of the sample. Calculations of domain width and contrast from the relevant energy contributions are compared with experimental results.

AB - A La0.7Sr0.3MnO3 thin film epitaxially grown on a LaAlO3 (001) substrate by pulsed laser deposition has been investigated by means of low-temperature magnetic force microscopy under high stability conditions. The ferromagnetic film exhibits a stress-induced perpendicular easy axis of magnetization. The domain structure was imaged at zero field after (i) thermal demagnetization, (ii) saturation in an in-plane field and (iii) saturation in an out-of-plane magnetic field, respectively. Stripe domains were observed in all cases, however, contrast and domain width are increased after out-of-plane saturation while alignment of stripe domains in field direction occurs after in-plane saturation. A quantitative analysis of the image contrast suggests a variable in-plane component of the magnetization, dependent on the magnetic history of the sample. Calculations of domain width and contrast from the relevant energy contributions are compared with experimental results.

KW - Domain structure

KW - Magnetic force microscopy

KW - Manganites

KW - Stripe domains

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