Interface-induced magnetic coupling in multiferroic/ferromagnetic bilayer : an ultrafast pump-probe study

Interface-induced magnetic coupling in multiferroic/ferromagnetic bilayer : an ultrafast pump-probe study

By use of optical pump-probe measurement, we study the relaxation dynamics of a multiferroic-ferromagnetic TbMnO3/La0.7Sr0.3MnO3 bilayer. The relaxation dynamics of both layers are well separated in time allowing us to investigate the magnetic coupling across the bilayer. We observe that the relaxat...

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Bibliographic Details
Main Authors: Su, Haibin, Chia, Elbert E. M., La-o-vorakiat, C., Tian, Y., Wu, T., Panagopoulos, C., Zhu, J.-X.
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Science::Physics::Electricity and magnetism
Online Access:https://hdl.handle.net/10356/104094
http://hdl.handle.net/10220/19529
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Institution: Nanyang Technological University
Language: English
Description
Summary:By use of optical pump-probe measurement, we study the relaxation dynamics of a multiferroic-ferromagnetic TbMnO3/La0.7Sr0.3MnO3 bilayer. The relaxation dynamics of both layers are well separated in time allowing us to investigate the magnetic coupling across the bilayer. We observe that the relaxation dynamics of the individual layers in the bilayer sample are the result of the interplay between the intrinsic magnetic order and the induced interfacial effect. Our data suggest the existence of induced ferromagnetic order in the TbMnO3 layer and antiferromagnetic order in the La0.7Sr0.3MnO3 layer.

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