Crystalline symmetry controlled magnetic switching in epitaxial (111) La0.7Sr0.3MnO3 thin films | Zendy

Ingrid Hallsteinsen | Zendy; Erik Folven | Zendy; F. K. Olsen | Zendy; Rajesh V. Chopdekar | Zendy; M. S. Rzchowski | Zendy; ChangBeom Eom | Zendy; J. K. Grepstad | Zendy; Thomas Tybell | Zendy

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Crystalline symmetry controlled magnetic switching in epitaxial (111) La_0.7Sr_0.3MnO₃ thin films

Author(s) -

Ingrid Hallsteinsen,

Erik Folven,

F. K. Olsen,

Rajesh V. Chopdekar,

M. S. Rzchowski,

ChangBeom Eom,

J. K. Grepstad,

Thomas Tybell

Publication year - 2015

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4907877

Subject(s) - materials science , condensed matter physics , spintronics , coercivity , magnetic anisotropy , magnetization , manganite , thin film , valence (chemistry) , anisotropy , magnetic domain , ferromagnetism , magnetic field , nanotechnology , optics , physics , quantum mechanics

Mixed-valence manganite thin films are attractive for spintronic devices. Crystalline orientation is a promising route to tailor switching mechanisms, as magnetization reversal depends on the magnetic anisotropy. Here, magnetic properties of (111)-oriented La0.7Sr0.3MnO3 thin films are elucidated by correlating macroscopic and local properties. The coercive field is an order of magnitude lower than (001)-oriented La0.7Sr0.3MnO3. Locally, a 6-fold magnetic anisotropy is observed, while macroscopically, an isotropic response is prevailing. This local coupling between the symmetry of the (111)-facet and magnetization governs the domain reversal process, demonstrating that symmetry offers a route to control magnetic properties for spintronic devices

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