Patterned Garnet Films on Substrates with Ion-Beam Bombarded Micropatterns

1998 ◽  
Vol 517 ◽  
Author(s):  
Yasuyuki Okamura ◽  
Sadahiko Yamamoto
Keyword(s):  
Rare Earth ◽  
Phosphoric Acid ◽  
Ion Beam ◽  
Amorphous Film ◽  
Considerable Influence ◽  
Garnet Film ◽  
Triangular Shape ◽  
Garnet Films ◽  
Strip Pattern ◽  
Iron Garnet

AbstractWe report the selected-area epitaxy of rare-earth iron garnet crystalline and amorphous straight ridge patterns, from 4μm to 8μm in width, deposited on Gd3Ga5O12 single crystal substrates. These samples were fabricated via a sputter epitaxial method on substrates that were partially etched by ion-beam bombardment. The strip pattern direction has given the considerable influence on the crystal-graphic formation of the sidewall of the grown ridge. The ridge shapes were similar to results that have been reported for the dissolution forms of garnet crystals in phosphoric acid and the facet of garnet crystals grown from flux. Furthermore, we have successfully grown both an epitaxial garnet film onto an amorphous film and an amorphous straight ridge with a triangular shape surrounded by crystal.

Novel magneto-optical recording materials: Bi-substituted garnet films

1991 ◽  
Vol 49 ◽  
pp. 776-777
Author(s):  
Takao Suzuki ◽  
Hossein Nuri
Keyword(s):  
Grain Size ◽  
Amorphous Film ◽  
Nitrogen Atmosphere ◽  
Optical Recording ◽  
Garnet Film ◽  
Media Noise ◽  
Garnet Films ◽  
Order Of Magnitude ◽  
A New Technique ◽  
A Current

For future high density magneto-optical recording materials, a Bi-substituted garnet film ((BiDy)3(FeGa)5O12) is an attractive candidate since it has strong magneto-optic effect at short wavelengths less than 600 nm. The signal in read back performance at 500 nm using a garnet film can be an order of magnitude higher than a current rare earth-transition metal amorphous film. However, the granularity and surface roughness of such crystalline garnet films are the key to control for minimizing media noise.We have demonstrated a new technique to fabricate a garnet film which has much smaller grain size and smoother surfaces than those annealed in a conventional oven. This method employs a high ramp-up rate annealing (Γ = 50 ~ 100 C/s) in nitrogen atmosphere. Fig.1 shows a typical microstruture of a Bi-susbtituted garnet film deposited by r.f. sputtering and then subsequently crystallized by a rapid thermal annealing technique at Γ = 50 C/s at 650 °C for 2 min. The structure is a single phase of garnet, and a grain size is about 300A.

scholarly journals Magnetism and spin transport in rare-earth-rich epitaxial terbium and europium iron garnet films

2018 ◽  
Vol 2 (9) ◽  
Author(s):  
Ethan R. Rosenberg ◽  
Lukáš Beran ◽  
Can O. Avci ◽  
Cyrus Zeledon ◽  
Bingqian Song ◽  
...  
Keyword(s):  
Rare Earth ◽  
Spin Transport ◽  
Garnet Films ◽  
Iron Garnet

Magnetoelastic Properties of Yttrium–Iron Garnet Films Manufactured by Means of Ion-Beam Sputtering onto Si and GaAs Substrates

2020 ◽  
Vol 65 (7) ◽  
pp. 1175-1180
Author(s):  
S. L. Vysotskii ◽  
Yu. V. Nikulin ◽  
A. V. Kozhevnikov ◽  
Yu. V. Khivintsev ◽  
V. K. Sakharov ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Gaas Substrates ◽  
Magnetoelastic Properties ◽  
Beam Sputtering ◽  
Iron Garnet

Surface Properties of Nanoscale Iron Garnet Films

2015 ◽  
Vol 233-234 ◽  
pp. 678-681
Author(s):  
T.B. Kosykh ◽  
A.S. Prosyakov ◽  
A.P. Pyatakov ◽  
Alexander N. Shaposhnikov ◽  
Anatoly R. Prokopov ◽  
...  
Keyword(s):  
Surface Properties ◽  
Scanning Probe Microscopy ◽  
Ion Beam ◽  
Roughness Parameters ◽  
Ion Beam Sputtering ◽  
Garnet Films ◽  
Atomic Force ◽  
Beam Sputtering ◽  
Iron Garnet ◽  
Surface Increase

Surface properties of nanoscale iron garnet films of different compositions prepared by reactive ion beam sputtering were examined by means of scanning probe microscopy. Atomic force microscope images of the film surfaces are represented for the films of different compositions and deposition times. The article presents the dependences of the roughness parameters on the film composition and thickness and on the energy of Ar+ ions by which the substrates were pre-treated. It was shown that the roughness parameters of the films' surface increase with the increase of Ar+ ions energy and the films' thickness.

Tuning magnetization compensation and Curie temperatures in epitaxial rare earth iron garnet films

2019 ◽  
Vol 100 (21) ◽  
Author(s):  
Temuujin Bayaraa ◽  
Changsong Xu ◽  
Davis Campbell ◽  
L. Bellaiche
Keyword(s):  
Rare Earth ◽  
Garnet Films ◽  
Iron Garnet ◽  
Curie Temperatures

Elastic Constants of Single-Crystal Rare-Earth Bismuth Iron Garnet Films

2008 ◽  
Vol 47 (5) ◽  
pp. 3851-3854 ◽  
Author(s):  
Nobutomo Nakamura ◽  
Hirotsugu Ogi ◽  
Masahiko Hirao ◽  
Takashi Fukuhara ◽  
Kenichi Shiroki ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Elastic Constants ◽  
Garnet Films ◽  
Iron Garnet

Faraday rotation in highly Bi-substituted yttrium iron garnet films prepared by ion beam sputtering

1987 ◽  
Vol 23 (5) ◽  
pp. 3491-3493 ◽  
Author(s):  
T. Okuda ◽  
N. Koshizuka ◽  
K. Hayashi ◽  
T. Takahashi ◽  
H. Kotani ◽  
...  
Keyword(s):  
Faraday Rotation ◽  
Yttrium Iron Garnet ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Beam Sputtering ◽  
Iron Garnet

Magnetoelastic Waves in Submicron Yttrium–Iron Garnet Films Manufactured by Means of Ion-Beam Sputtering onto Gadolinium–Gallium Garnet Substrates

2018 ◽  
Vol 63 (7) ◽  
pp. 1029-1035 ◽  
Author(s):  
Yu. V. Khivintsev ◽  
V. K. Sakharov ◽  
S. L. Vysotskii ◽  
Yu. A. Filimonov ◽  
A. I. Stognii ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Ion Beam ◽  
Gadolinium Gallium Garnet ◽  
Ion Beam Sputtering ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Beam Sputtering ◽  
Iron Garnet ◽  
Magnetoelastic Waves

Current sensing using bismuth rare-earth iron garnet films

1995 ◽  
Vol 34 (10) ◽  
pp. 1692 ◽  
Author(s):  
Michael Ko ◽  
Elsa Garmire
Keyword(s):  
Rare Earth ◽  
Current Sensing ◽  
Garnet Films ◽  
Iron Garnet
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