Anomalous Ferromagnetism in TbMnO3 Thin Films

Abstract

Magnetometry, x-ray, and neutron scattering have been used to study the structural and magnetic properties of a TbMnO3 thin film grown on a [001] SrTiO3 substrate by pulsed laser deposition. Although bulk TbMnO3 is a low temperature antiferromagnet, magnetometry measurements indicate the presence of low temperature ferromagnetism. Depth profiling by x-ray and polarized neutron reflectometry reveals a net sample magnetization that is commensurate with the film thickness, indicating that the observed ferromagnetism is not due to an altered surface phase (such as Mn3O4), or external impurities that might give rise to an artificial magnetic signal. Instead, these results show that the ferromagnetism is an intrinsic property of the TbMnO3 film.

Accepted to Journal of Applied Physics

References in corpus (3)

• Electric field control of exchange bias in multiferroic epitaxial heterostructures
• Ferromagnetism and increased ionicity in epitaxially grown TbMnO3 films
• Magnetic and dielectric properties of YbMnO3 perovskite thin films

Cited by in corpus (7)

• Strain-induced ferromagnetism in antiferromagnetic LuMnO3 thin films
• Multiferroic RMnO3 thin films
• Strain-driven non-collinear magnetic ordering in orthorhombic epitaxial YMnO3 thin films
• Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy
• Multiferroicity and Magnetoelectric Coupling in TbMnO3 Thin Films
• Interfacial Magnetism in Complex Oxide Heterostructures Probed by Neutrons and X-rays
• Double-exchange model study of multiferroic $R$MnO${}_3$ perovskites