Academic Journal
Magnetism in iridate heterostructures leveraged by structural distortions
| العنوان: | Magnetism in iridate heterostructures leveraged by structural distortions |
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| المؤلفون: | Meyers, D., Cao, Y., Fabbris, G., Robinson, N.J., Hao, L., Frederick, C., Traynor, N., Yang, J., Lin, J., Upton, M.H., Casa, D., Kim, J.-W., Gog, T., Karapetrova, E., Choi, Y., Haskel, D., Ryan, P.J., Horak, L., Liu, X., Liu, J., Dean, M.P.M. |
| المصدر: | Meyers , D , Cao , Y , Fabbris , G , Robinson , N J , Hao , L , Frederick , C , Traynor , N , Yang , J , Lin , J , Upton , M H , Casa , D , Kim , J-W , Gog , T , Karapetrova , E , Choi , Y , Haskel , D , Ryan , P J , Horak , L , Liu , X , Liu , J & Dean , M P M 2019 , ' Magnetism in iridate heterostructures leveraged by structural distortions .... |
| سنة النشر: | 2019 |
| المجموعة: | Universiteit van Amsterdam: Digital Academic Repository (UvA DARE) |
| الوصف: | Fundamental control of magnetic coupling through heterostructure morphology is a prerequisite for rational engineering of magnetic ground states. We report the tuning of magnetic interactions in superlattices composed of single and bilayers of SrIrO 3 inter-spaced with SrTiO 3 in analogy to the Ruddlesden-Popper series iridates. Magnetic scattering shows predominately c -axis antiferromagnetic orientation of the magnetic moments for the bilayer, as in Sr 3 Ir 2 O 7 . However, the magnetic excitation gap, measured by resonant inelastic x-ray scattering, is quite different between the two structures, evidencing a significant change in the stability of the competing magnetic phases. In contrast, the single layer iridate hosts a more bulk-like gap. We find these changes are driven by bending of the c -axis Ir-O-Ir bond, which is much weaker in the single layer, and subsequent local environment changes, evidenced through x-ray diffraction and magnetic excitation modeling. Our findings demonstrate how large changes in the magnetic interactions can be tailored and probed in spin-orbit coupled heterostructures by engineering subtle structural modulations. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://dare.uva.nl/personal/pure/en/publications/magnetism-in-iridate-heterostructures-leveraged-by-structural-distortions(6b32685a-7f32-4334-bdca-556688ef86f3).html |
| DOI: | 10.1038/s41598-019-39422-9 |
| الاتاحة: | https://dare.uva.nl/personal/pure/en/publications/magnetism-in-iridate-heterostructures-leveraged-by-structural-distortions(6b32685a-7f32-4334-bdca-556688ef86f3).html https://doi.org/10.1038/s41598-019-39422-9 https://hdl.handle.net/11245.1/6b32685a-7f32-4334-bdca-556688ef86f3 https://pure.uva.nl/ws/files/37507944/s41598_019_39422_9.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7C6D9E47 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41598-019-39422-9 |
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