Journal article
In situ electric-field control of ferromagnetic resonance in the low-loss organic-based ferrimagnet V[TCNE]x∼2
APL materials, Vol.12(5), 051115
05/01/2024
DOI: 10.1063/5.0189565
Abstract
We demonstrate indirect electric-field control of ferromagnetic resonance (FMR) in devices that integrate the low-loss, molecule-based, room-temperature ferrimagnet vanadium tetracyanoethylene (V[TCNE](x similar to 2)) mechanically coupled to PMN-PT piezoelectric transducers. Upon straining the V[TCNE](x) films, the FMR frequency is tuned by more than 6 times the resonant linewidth with no change in Gilbert damping for samples with alpha = 6.5 x 10(-5). We show this tuning effect is due to a strain-dependent magnetic anisotropy in the films and find the magnetoelastic coefficient |lambda(s)| similar to (1-4.4) ppm, backed by theoretical predictions from density-functional theory calculations and magnetoelastic theory. Noting the rapidly expanding application space for strain-tuned FMR, we define a new metric for magnetostrictive materials, magnetostrictive agility, given by the ratio of the magnetoelastic coefficient to the FMR linewidth. This agility allows for a direct comparison between magnetostrictive materials in terms of their comparative efficacy for magnetoelectric applications requiring ultra-low loss magnetic resonance modulated by strain. With this metric, we show V[TCNE](x) is competitive with other magnetostrictive materials, including YIG and Terfenol-D. This combination of ultra-narrow linewidth and magnetostriction, in a system that can be directly integrated into functional devices without requiring heterogeneous integration in a thin film geometry, promises unprecedented functionality for electric-field tuned microwave devices ranging from low-power, compact filters and circulators to emerging applications in quantum information science and technology.
Details
- Title: Subtitle
- In situ electric-field control of ferromagnetic resonance in the low-loss organic-based ferrimagnet V[TCNE]x∼2
- Creators
- Seth W. Kurfman - The Ohio State UniversityAndrew Franson - The Ohio State UniversityPiyush Shah - United States Air Force Research LaboratoryYueguang Shi - University of IowaHil Fung Harry Cheung - Cornell UniversityKatherine E. Nygren - Colorado State UniversityMitchell Swyt - Colorado State UniversityKristen S. Buchanan - Colorado State UniversityGregory D. Fuchs - Cornell UniversityMichael E. Flatte - University of IowaGopalan Srinivasan - United States Air Force Research LaboratoryMichael Page - United States Air Force Research LaboratoryEzekiel Johnston-Halperin - The Ohio State University
- Resource Type
- Journal article
- Publication Details
- APL materials, Vol.12(5), 051115
- Publisher
- AIP Publishing
- DOI
- 10.1063/5.0189565
- ISSN
- 2166-532X
- eISSN
- 2166-532X
- Number of pages
- 10
- Grant note
- DE-SC0019250 / DOE Office of Science (Basic Energy Sciences) Grant; United States Department of Energy (DOE) NSF EFMA-174166 / NSF-EFRI Grant DMR-1808704 / NSF; National Science Foundation (NSF) FA955023RXCOR001; FA9550-20-1-0114 / Air Force Office of Scientific Research (AFOSR) Award; United States Department of Defense; Air Force Office of Scientific Research (AFOSR) ECCS-1923732; ECCS-EAGER-2236879; DMR-1808892; DMR-1808742 / National Science Foundation; National Science Foundation (NSF)
- Language
- English
- Date published
- 05/01/2024
- Academic Unit
- Physics and Astronomy; Electrical and Computer Engineering
- Record Identifier
- 9984630594502771
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