PARAMAGNETIC GARNET FILM MONOCHROMATOR FOR SYNCHROTRON RADIATION

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-2031-C8-2032
Author(s):  
G. Balestrino ◽  
E. Gerdau ◽  
M. Grove ◽  
R. Hollatz ◽  
E. Milani ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Garnet Film

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.

Direct Observation of Monolayer Zones in Al-wt 4% Cu

1990 ◽  
Vol 48 (1) ◽  
pp. 14-15
Author(s):  
B. Jouffrey ◽  
D. Dorignac ◽  
A. Bourret
Keyword(s):  
Solid Solution ◽  
Synchrotron Radiation ◽  
Direct Observation ◽  
Supersaturated Solid Solution ◽  
Original Model ◽  
X Ray ◽  
Image Position

Since the early works on GP zones and the model independently proposed by Preston and Guinier on the first steps of precipitation in supersaturated solid solution of aluminium containing a few percent of copper, many works have been performed to understand the structure of different stages in the sequence of precipitation.The scheme which is generally admitted can be drawn from a work by Phillips.In their original model Guinier and Preston analysed a GP zone as composed of a single (100) copperrich plane surrounded by aluminum atomic planes with a slightly shorter distance from the original plane than in the solid solution.From X-ray measurements it has also been shown that GP1 zones were not only copper monolayer zones. They could be up to a few atomic planes thick. Different models were proposed by Guinier, Gerold, Toman. Using synchrotron radiation, proposals have been recently made.

Synchrotron radiation X-rays demonstrate small cerebral vessels in normal mouse and variations under ischemia in rat

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S558-S558
Author(s):  
Masahiro Tamaki ◽  
Takashi Mizobe ◽  
Keiji Kidoguchi ◽  
Junnji Koyama ◽  
Takeshi Kondoh ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Normal Mouse ◽  
Cerebral Vessels ◽  
X Rays

SYNCHROTRON RADIATION AS A SOURCE FOR STRUCTURAL ANALYSIS IN BIOLOGY

1973 ◽  
Vol 34 (C8) ◽  
pp. C8-63-C8-63
Author(s):  
J. BARRINGTON LEIGH ◽  
G. ROSENBAUM
Keyword(s):  
Structural Analysis ◽  
Synchrotron Radiation

THE STUDY OF DISLOCATION GLIDE IN ICE BY SYNCHROTRON RADIATION X-RAY TOPOGRAPHY

1987 ◽  
Vol 48 (C1) ◽  
pp. C1-175-C1-181
Author(s):  
S. AHMAD ◽  
M. OHTOMO ◽  
R. W. WHITWORTH
Keyword(s):  
Synchrotron Radiation ◽  
X Ray ◽  
Dislocation Glide

FERRO-HELIMAGNETIC PHASE COEXISTENCE OBSERVED BY SYNCHROTRON RADIATION AND NEUTRON TOPOGRAPHY IN MnP

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1891-C8-1892
Author(s):  
J. Baruchel ◽  
M. Schlenker ◽  
J. Sandonis
Keyword(s):  
Synchrotron Radiation ◽  
Phase Coexistence

TESTS OF MULTILAYERS BASED SOFT X-RAY MONOCHROMATORS FOR SYNCHROTRON RADIATION

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-91-C9-94
Author(s):  
M. GRIONI ◽  
F. SCHAEFERS ◽  
J. B. GOEDKOOP ◽  
J. C. FUGGLE ◽  
J. L. WOOD ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
X Ray
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