Strain-domain structure and stability diagrams for single-domain magnetic thin films

J. J. Wang, Jia Mian Hu, Long Qing Chen, Ce Wen Nan

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Strain effects on domain structures and thermal stability in single-domain magnetic thin films were studied using thermodynamic analysis. The strain-domain structure and stability diagrams were established and compared to several existing experimental results. The structure diagram displays various stable single-domain states under in-plane normal and/or in-plane shear strains by minimizing the free energy density whereas the stability diagram takes into account possible thermal excitations and hence illustrate the thermally stable magnetic single-domain states. The results improve the understanding of strain-magnetization correlation in magnetic thin films and provide useful insight for the development of strain-engineered magnetic nanostructures with novel functionalities.

Original languageEnglish (US)
Article number142413
JournalApplied Physics Letters
Volume103
Issue number14
DOIs
StatePublished - Oct 21 2013

Fingerprint

magnetic domains
diagrams
thin films
shear strain
thermal stability
flux density
free energy
thermodynamics
magnetization
excitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

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Strain-domain structure and stability diagrams for single-domain magnetic thin films. / Wang, J. J.; Hu, Jia Mian; Chen, Long Qing; Nan, Ce Wen.

In: Applied Physics Letters, Vol. 103, No. 14, 142413, 21.10.2013.

Research output: Contribution to journalArticle

TY - JOUR

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AB - Strain effects on domain structures and thermal stability in single-domain magnetic thin films were studied using thermodynamic analysis. The strain-domain structure and stability diagrams were established and compared to several existing experimental results. The structure diagram displays various stable single-domain states under in-plane normal and/or in-plane shear strains by minimizing the free energy density whereas the stability diagram takes into account possible thermal excitations and hence illustrate the thermally stable magnetic single-domain states. The results improve the understanding of strain-magnetization correlation in magnetic thin films and provide useful insight for the development of strain-engineered magnetic nanostructures with novel functionalities.

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