Magnetization Dynamics Study of Crystalline and Amorphous Polyvinylidene Fluoride Thin Films in Polyvinylidene Fluoride/CoFeNi Bilayers
Source abstract
Abstract
Magnetization dynamics across polyvinylidene fluoride (PVDF) thin films in PVDF/CoFeNi bilayers have been systematically investigated using coplanar waveguide ferromagnetic resonance spectroscopy in broadband frequency range from 9 to 37 GHz. The influence of crystalline (mixture of nonpolar α and polar β phases) and amorphous (nonpolar) PVDF interfaces upon the magnetization dynamics is probed by calculating the Gilbert damping ( α G ) and spin‐mixing conductance ( g ↑↓ ) parameters by varying the thickness of PVDF. A higher α G and its methodical rise with the increase in thickness of crystalline PVDF thin films is noted in comparison with the nonpolar amorphous PVDF interfaces. This work suggests the feasibility of controlling the magnetization dynamics using the crystalline or polar interfaces, possibly by interfacial magnetoelectric coupling at the ferroelectric/ferromagnetic interfaces.
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Research context
OpenAlex topics: Magnetic properties of thin films · Multiferroics and related materials · Theoretical and Computational Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Functional Thin Films Laboratory Department of Physics School of Physical Chemical and Applied Sciences Pondicherry University Kalapet Puducherry 605014 India
CSIR‐National Physical Laboratory Dr K S Krishnan Marg New Delhi 110012 India
Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
Defence Metallurgical Research Laboratory Hyderabad Telangana 500058 India
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