Temperature dependence of anisotropy fields in deuterium implanted garnet films

Ferromagnetic resonance spectra and x-ray rocking curves were used to measure magnetic and strain profiles of Gd, Tm, Ga substituted yttrium iron garnet films implanted with H2+ at 120 keV and at doses in the range (3–80)×1015 ions/cm2. The maximum strain occurred at a depth of 3600 Å, reaching a value of 2.9% at 40×1015 ions/cm2. At the highest dose, the garnet was amorphous in that region which had highest strain at lower dose. The strain has two components, one due to damage and one due to the presence of the hydrogen atoms. The second component disappears for annealing temperatures above 400 °C, at which temperature the hydrogen has been reported to be largely desorbed. The reduction of the first component with annealing follows the same pattern as other implant elements. The magnetic anisotropy exhibits a large anomalous nonlinear increase with dose. The excess over other implantation elements disappears for annealing temperatures above 400 °C. There is no significant change in gyromagnetic ratio with dose or annealing temperatures up to 600 °C.

show abstract

Annealing behavior of hydrogen-implanted magnetic garnet

Wilts

Awano

Speriosu

1985

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

Some hydrogen implantation effects in bubble garnets

Gérard

Martin

Delaye

1985

Journal of Applied Physics

View full text Add to dashboard Cite

A classical (Y,Sm,Lu,Ca)3 (Fe,Ge)5O12 bubble garnet has been implanted with 1.5×1016 H+2 cm−2 at 60 keV either directly or through a predeposited 100-A-thick silica layer. The damage and ion implant profile were determined as well as the maximum strain and some magnetic properties of an as-implanted sample. The evolution of certain of these parameters have been studied after different well-chosen annealing treatments. From these observations it has been possible to dissociate the abnormal ‘‘chemical’’ from the usual magnetic effects. A certain mechanical contribution of the silica overcoat to the implanted layer has been displayed.

show abstract

Influence of deuterium implantation on bubble garnet properties

Gérard¹,

Capra²,

Magnin³

1985

Journal of Applied Physics

View full text Add to dashboard Cite

A classical (Y Sm Lu Ca)3 (Fe Ge)5 O12 bubble garnet, supporting 1.8-μm bubbles, has been implanted with 1.5×1016 D+2 cm2 at 60 keV either directly or through a predeposited 100-Å-thick silica layer. Nuclear techniques such as D (3He, α) p nuclear reaction and Rutherford backscattering combined with channeling measurements were used to determine the implant and damage profiles, respectively. Double-crystal x-ray diffraction was used to measure the maximum strain and magnetic properties were obtained from ferromagnetic resonance. The evolution of these parameters has been studied as a function of annealing treatments. It follows that, as compared to hydrogen, deuterium also interacts at damage-level inducing within the garnet new magnetic phenomena. A higher annealing temperature is required for bubble memory applications. The silica overlayer which is useful for increasing the anisotropy field change, somewhat affects the magnetic properties of the implanted layer.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Temperature dependence of anisotropy fields in deuterium implanted garnet films

Cited by 7 publications

References 16 publications

Annealing behavior of hydrogen-implanted magnetic garnet

Annealing behavior of hydrogen-implanted magnetic garnet

Some hydrogen implantation effects in bubble garnets

Influence of deuterium implantation on bubble garnet properties

Contact Info

Product

Resources

About