Magnetism of NiMn2O4-Fe3O4 Spinel Interfaces
B. B. Nelson-Cheeseman, R. V. Chopdekar, J. S. Bettinger, E. Arenholz,, Y. Suzuki
TL;DR
This study explores the magnetic behavior of NiMn2O4-Fe3O4 spinel interfaces, revealing strong interfacial magnetic coupling at room temperature due to interdiffusion of elements, despite different bulk magnetic transition temperatures.
Contribution
It provides new insights into interfacial magnetic coupling mechanisms in spinel spinel heterostructures, highlighting the role of interdiffused regions in magnetic properties.
Findings
Interfacial magnetic coupling persists up to room temperature.
Interdiffusion creates a (Fe,Mn,Ni)3O4 region affecting magnetic behavior.
NMO's magnetic transition temperature remains unchanged.
Abstract
We investigate the magnetic properties of the isostructural spinel-spinel interface of NiMn2O4(NMO)-Fe3O4. Although the magnetic transition temperature of the NMO film is preserved, both bulk and interface sensitive measurements demonstrate that the interface exhibits strong interfacial magnetic coupling up to room temperature. While NMO thin films have a ferrimagnetic transition temperature of 60K, both NiFe2O4 and MnFe2O4 are ferrimagnetic at room temperature. Our experimental results suggest that these magnetic properties arise from a thin interdiffused region of (Fe,Mn,Ni)3O4 at the interface leading to Mn and Ni magnetic properties similar to MnFe2O4 and NiFe2O4.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.