Electric field tuning of ferromagnetic resonance field and linewidth in epitaxial LiFe5O8/PMN-PT (0 1 1) heterostructure
Source abstract
Abstract
Here a typical ME heterostructure is prepared by growing epitaxial LiFe 5O 8 (LFO) thin films on Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 (PMN-PT) (0 1 1) substrates by pulse laser deposition (PLD). Ferromagnetic resonance (FMR) test results at in situ voltage show that the tunability of FMR field ( H r) and linewidth (Δ H) have strong angular dependences with external magnetic field. It is inferred that the change of the orientation of equilibrium magnetization contributes to the abnormal enhancement of ME coupling at certain angles. The theoretical fitting reveals that the Gilbert damping (Δ H Gilb), two-magnon scattering (Δ H TMS) and inhomogeneous broadening (Δ H inhom) play the different roles for the increase of linewidth of LFO film at various magnetic field directions. Additionally, the ME coupling in LFO/PMN-PT (0 1 1) heterostructure shows well temperature stability at range of 100–300 K. Those discoveries enrich the understanding of the ME phenomenon and provide guidance to the development of novel multiferroic materials and devices.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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