ferromagnetic resonance – TechConnect Briefs

Enhancement of Ferromagnetism in Amine/Organic Acid Capped Au-Nanoparticles by Yttrium-Oxide Inclusion

Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Urbano R.R., Rettori C., Rettori D., Universidade Estadual de Campinas (UNICAMP), BR

In this work we report on the enhancement of the ferromagnetism of amine/organic acid capped Au nanoparticles (AuNPs) by incorporation of yttrium-oxide (Y2O3). The magnetization measurements displayed a ferromagnetic (FM) loop with a coercive field [...]

Ferromagnetic Resonance in amine/organic acid caped Au-nanoparticles assisted by rare-earths oxides

Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Rettori C., Rettori D., Universidade Estadual de campinas, BR

Amine/organic acid caped Au-nanoparticles (Au-NPs) were prepared by reducing gold tetrachloroaurate (HAuCl4.3H2O) and rare-earth (RE)-oxides (RE = Er and Y and monodisperse samples of caped Au-NPs of ~10 nm in diameter were obtained. The magnetization [...]

Tunable Wideband Microwave Band-Stop and Band-Pass Filters Using YIG/GGG-GaAs Layer Structures

Tsai C.S., Qiu G., Gao H., Li G.P., Yang L.W., Nikitov S.A., University of California Irvine, US

Future wideband communication and radar systems require high-speed electronically-tuned wideband microwave band-stop and band-pass filters. Ferromagnetic resonance (FMR)-based microwave devices possess the unique capability of high-speed electronic tunability, using magnetic field, for very high carrier [...]