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Updated: Jan 12, 2026
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Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 5, 2013
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Anisotropic magnetoresistance in Sr2FeMoO6thin films
Akseli Nykänen Nykänen1, Ilari Angervo1, Hannu Huhtinen1
1Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, Turku FI-20014, Finland.
Summary
Epitaxial strontium ruthenium oxide films exhibit anisotropic magnetoresistance, challenging existing theories. Temperature annealing also improved their magnetic properties, highlighting the need for further electrical property studies.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Solid State Chemistry
Background:
- Strontium ruthenium oxide (Sr$_{2}$FeMoO$_{6}$) films are known for their unique electronic and magnetic properties.
- Investigating anisotropic magnetoresistance (AMR) is crucial for understanding charge transport in magnetic materials.
Purpose of the Study:
- To investigate the magnetoresistive properties of epitaxial Sr$_{2}$FeMoO$_{6}$ (SFMO) films.
- To explore the influence of crystallographic orientation on the anisotropic resistance response.
- To evaluate the effectiveness of current models in explaining the observed AMR phenomena.
Main Methods:
- Epitaxial growth of SFMO thin films.
- Electrical transport measurements under varying magnetic fields and current orientations.
- Analysis of resistance-field dependencies and symmetry analysis.
Main Results:
- Observed distinct anisotropic resistance response in SFMO films, dependent on current path orientation.
- Identified varying symmetries in resistance-field direction dependence, suggesting complex AMR mechanisms.
- Demonstrated enhanced magnetic properties after temperature annealing treatment.
Conclusions:
- Current explanations for anisotropic magnetoresistance may be insufficient for SFMO.
- A deeper understanding of the electrical properties of SFMO and similar materials is required.
- Temperature annealing is an effective method for improving magnetic properties in SFMO films.
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