Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy

Abstract

Ultrafast optical pump-probe spectroscopy is used to reveal the coexistence of coupled antiferromagnetic/ferroelectric and ferromagnetic orders in multiferroic TbMnO3 films through their time domain signatures. Our observations are explained by a theoretical model describing the coupling between reservoirs with different magnetic properties. These results can guide researchers in creating new kinds of multiferroic materials that combine coupled ferromagnetic, antiferromagnetic and ferroelectric properties in one compound.

Accepted by Appl. Phys. lett

References in corpus (6)

• Many-body Green's function theory of Heisenberg films
• Epitaxial TbMnO3 thin films on SrTiO3 substrates: A structural study
• Ferromagnetism and increased ionicity in epitaxially grown TbMnO3 films
• Anomalous Ferromagnetism in TbMnO3 Thin Films
• Anomalous thermal expansion and strong damping of the thermal conductivity of NdMnO${}_3$ and TbMnO${}_3$ due to 4f crystal-field excitations
• Two Component Heat Diffusion Observed in CMR Manganites

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• Measurement of Two Low-Temperature Energy Gaps in the Electronic Structure of Antiferromagnetic USb2 Using Ultrafast Optical Spectroscopy
• Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure
• Multiferroicity and Magnetoelectric Coupling in TbMnO3 Thin Films
• Influence of spin and orbital fluctuations on Mott-Hubbard exciton dynamics in LaVO${}_3$ Thin Films
• Probing ultrafast spin dynamics in the antiferromagnetic multiferroic HoMnO${}_3$ through a magnon resonance
• Spin-dependent polaron formation dynamics in Eu${}_{0.75}$Y${}_{0.25}$MnO${}_3$ probed by femtosecond pump-probe spectroscopy
• Lattice-Mediated Magnetic Order Melting in TbMnO3
• Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses
• Magneto-Elastic Coupling to Coherent Acoustic Phonon Modes in Ferrimagnetic Insulator GdTiO${}_3$
• Photoinduced structural dynamics of multiferroic TbMnO${}_3$