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Magnetism at an iridate/manganite interface: Influence of strong spin-orbit interactionстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Ovsyannikov G.A., Shaikhulov T.A., Stankevich K.L., Khaydukov Yu, Andreev N.V.
- Журнал: Physical Review B
- Том: 102
- Номер: 14
- Год издания: 2020
- Издательство: American Physical Society
- Местоположение издательства: United States
- DOI: 10.1103/physrevb.102.144401
- Аннотация: A comprehensive study of electron and magnetic properties and spin transport in the epitaxial mangan-ite/iridate heterostructure was carried out by using of the x-ray, dc resistance measurements, ferromagneticresonance at microwaves, polarized neutron reflectivity, and spin-current transport. Epitaxial growth of theheterostructure proceeded according to the “cube-to-cube” mechanism with a small lattice turn. The dc currentmeasurement indicates the presence of a conduction channel at the iridate/manganite interface due to the chargeleak from iridate making it hole doped, while the manganite side can be doped by electron. This is confirmed bythe first-principles calculations based on density-functional theory [S. Bhowal and S. Satpathy,AIP Conf. Proc.2005, 020007 (2018)], which showed a charge transfer at the interface from the half-filled spin-orbit entangledJeff=1/2 state of the iridate to the emptye↑gstates of manganite. The neutron-scattering data show the turn ofmagnetization vector of the heterostructure by 26◦towards the external field with temperature reduction downto 10 K. An additional ferromagnetic state that appears atT<100 K indicates an emergence of ferromagnetismat the interface of the paramagnetic SrIrO3film and ferromagnetic manganite. We measured the dc voltage thatoccurs on the SrIrO3film due to spin pumping and anisotropic magnetoresistance in the heterostructure.
- Добавил в систему: Станкевич Константин Леонидович