Analysis and lattice imaging of a transitional event on garnets

1978 ◽  
Vol 36 (1) ◽  
pp. 270-271
Author(s):  
J.Y. Laval
Keyword(s):  
Yttrium Iron Garnet ◽  
Reciprocal Lattice ◽  
Transitional Zone ◽  
Lattice Imaging ◽  
Yttrium Iron ◽  
X Ray ◽  
Ionic Process ◽  
The Matrix ◽  
High Resolution Technique ◽  
Iron Garnet

The exsolution of magnetite from a substituted Yttrium Iron Garnet, containing an iron excess may lead to a transitional event. This event is characterized hy the formation of a transitional zone at the center of which the magnetite nucleates (Fig.1). Since there is a contrast between the matrix and these zones and since selected area diffraction does not show any difference between those zones and the matrix in the reciprocal lattice, it is of interest to analyze the structure of the transitional zones.By using simultaneously different techniques in electron microscopy, (oscillating crystal method microdiffraction and X-ray microanalysis)one may resolve the ionic process corresponding to the transitional event and image this event subsequently by high resolution technique.

Valence states of iron ions in nanostructured yttrium iron garnet Y3Fe5O12 studied by means of soft X-ray absorption spectroscopy

2012 ◽  
Vol 185 (12) ◽  
pp. 598-601 ◽  
Author(s):  
V.V. Mesilov ◽  
V.R. Galakhov ◽  
B.A. Gizhevskii ◽  
N.I. Lobachevskaya ◽  
M. Raekers ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Yttrium Iron Garnet ◽  
Iron Ions ◽  
Yttrium Iron ◽  
X Ray ◽  
Valence States ◽  
Iron Garnet ◽  
X Ray Absorption

Sol-Gel Derived Ferrites: Synthesis and Characterization

2011 ◽  
Vol 222 ◽  
pp. 235-238 ◽  
Author(s):  
Aurelija Gatelyte ◽  
Darius Jasaitis ◽  
Aldona Beganskiene ◽  
Aivaras Kareiva
Keyword(s):  
Transition Metal ◽  
Yttrium Iron Garnet ◽  
Sol Gel ◽  
Synthesis And Characterization ◽  
Ceramic Pigments ◽  
X Ray Diffraction ◽  
Yttrium Iron ◽  
X Ray ◽  
Cobalt Nickel ◽  
Iron Garnet

In the present work, the sinterability and formation of nanosized yttrium iron garnet (Y3Fe5O12), yttrium perovskite ferrite (YFeO3), cobalt, nickel and zinc iron spinel (CoFe2O4, NiFe2O4 and ZnFe2O4, respectively) powders by an aqueous sol-gel processes are investigated. The phase purity of synthesized nano-compounds was characterized by powder X-ray diffraction analysis (XRD). The microstructural evolution and morphological features of obtained transition metal ferrites were studied by scanning electron microscopy (SEM). The possible application of these nanosized transition metal ferrites as ceramic pigments was demonstrated.

Element selective X-ray magnetic circular and linear dichroisms in ferrimagnetic yttrium iron garnet films

2009 ◽  
Vol 321 (23) ◽  
pp. 3945-3962 ◽  
Author(s):  
A. Rogalev ◽  
J. Goulon ◽  
F. Wilhelm ◽  
Ch. Brouder ◽  
A. Yaresko ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
X Ray ◽  
Garnet Films ◽  
Iron Garnet

X-Ray Spectrographic Analysis of Rare Earths in Yttrium-Iron Garnet Powders

1962 ◽  
Vol 6 ◽  
pp. 389-395
Author(s):  
J. C. Lloyd ◽  
J. D. Kuptsis
Keyword(s):  
Sample Preparation ◽  
Rare Earths ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
X Ray ◽  
Straight Line ◽  
Precision And Accuracy ◽  
Iron Garnet ◽  
Preparation Techniques ◽  
Better Than

AbstractAnalysis schemes for eleven rare earths (Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb) taken singly in Y-Fe garnet powders are presented. Straight-line calibrations result in all cases, usually over a range from below 0.5 wt.% to better than 6 wt.%. Errors were held to ±5-10% even using extraordinarily simple sample preparation techniques. Data are presented relating to the effects of particle size and sample preparation on precision and accuracy of the resulting analysis.

Effect of stress from the glue on single-crystal X-ray intensities at high or low temperatures

1989 ◽  
Vol 22 (4) ◽  
pp. 378-380 ◽  
Author(s):  
R. Argoud ◽  
J. Muller
Keyword(s):  
Low Temperature ◽  
Single Crystal ◽  
Low Temperatures ◽  
Yttrium Iron Garnet ◽  
Room Temperature ◽  
Yttrium Iron ◽  
X Ray ◽  
High Or Low Temperature ◽  
Secondary Extinction ◽  
Iron Garnet

For high- or low-temperature single-crystal X-ray data collection, the glues used to bind crystals to silica rods may induce strong modifications of the intensities. When an yttrium iron garnet (YIG) crystal was cooled, reflections which were equivalent at room temperature became different. This is explained by strong stresses of the glue on the crystal which lead to an anisotropic modification of the secondary extinction. At low temperatures, `glues' such as beeswax or paraffin do not exert stresses.

scholarly journals Nanoscale X-ray imaging of spin dynamics in yttrium iron garnet

2019 ◽  
Vol 126 (17) ◽  
pp. 173909 ◽  
Author(s):  
J. Förster ◽  
S. Wintz ◽  
J. Bailey ◽  
S. Finizio ◽  
E. Josten ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Spin Dynamics ◽  
Yttrium Iron ◽  
X Ray ◽  
X Ray Imaging ◽  
Iron Garnet
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