XANES/EXAFS study of the Lu and Y incorporation in the single crystal Tb3Sc2Al3O12 Faraday rotator

X. Biquard; E. G. Víllora; K. Shimamura; K. Lorenz

doi:10.1063/1.5145188

Polarised EXAFS Study Of In-Plane Distortion In A Pr-Doped BSCCO (2212) Single Crystal

International Journal of Modern Physics B ◽

10.1142/s0217979200003915 ◽

2000 ◽

Vol 14 (29n31) ◽

pp. 3432-3437

Author(s):

S. Dalela ◽

B. Dalela ◽

D. Chaturvedi ◽

R. K. Singhal ◽

D. C. Jain ◽

...

Keyword(s):

Single Crystal ◽

Room Temperature ◽

Waller Factor ◽

Exafs Analysis ◽

Debye Waller Factor ◽

Exafs Study

Polarised EXAFS measurements on the Cu K edge in a Pr-doped BSCCO (2212) insulating single crystal have been made at room temperature at the SRRC, Taiwan. Measurements have been confined to only the E//a, E//a∧45 and E//b directions within the Cu- O 2 plane as most of the action is here. While the spectra in the E//a and E//b look very similar, the E//a∧45 spectrum does look a little different. EXAFS analysis shows that Cu-O (planar) distances as well as the Debye Waller factor values in different directions turn out to be slightly different indicating a possibility of presence of some in-plane distortion. This appears to be very much in agreement with our XANES results on this system and our EXAFS results on Pr-doped YBCO (123) system reported earlier, which also indicate the presence of some distortion. Presence of Pr is speculated to be the cause for producing this distortion. This would be discussed in some detail taking into account the possibility that Pr, besides quenching holes, may also be displacing the in-plane oxygens.

Optical Faraday rotator using Ce-substituted fibrous YIG single crystal grown by floating-zone method with YAG laser heating

IEEE Transactions on Microwave Theory and Techniques ◽

10.1109/22.808973 ◽

1999 ◽

Vol 47 (12) ◽

pp. 2294-2298 ◽

Cited By ~ 10

Author(s):

T. Sekijima ◽

T. Fujii ◽

K. Wakino ◽

M. Okada

Keyword(s):

Single Crystal ◽

Laser Heating ◽

Floating Zone ◽

Faraday Rotator ◽

Zone Method ◽

Yag Laser ◽

Floating Zone Method

Optical Faraday rotator using Ce-substituted fibrous YIG single crystal grown by floating zone method with YAG laser heating

1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) ◽

10.1109/mwsym.1999.779642 ◽

2003 ◽

Author(s):

T. Sekijima ◽

T. Fujii ◽

K. Wakino ◽

M. Okada

Keyword(s):

Single Crystal ◽

Laser Heating ◽

Floating Zone ◽

Faraday Rotator ◽

Zone Method ◽

Yag Laser ◽

Floating Zone Method

Effective development of Faraday rotator based on the highly transparent Tb2.96Pr0.04Ga5O12 single crystal

Applied Physics B ◽

10.1007/s00340-016-6331-1 ◽

2016 ◽

Vol 122 (3) ◽

Cited By ~ 1

Author(s):

Zhe Chen ◽

Lei Yang ◽

Yin Hang ◽

Xiangyong Wang

Keyword(s):

Single Crystal ◽

Faraday Rotator ◽

Effective Development

An EXAFS study on Bi2Sr2Ca1−xPrxCu2O8−δ single crystal using polarized synchrotron radiation

Physica C Superconductivity ◽

10.1016/j.physc.2010.12.011 ◽

2011 ◽

Vol 471 (5-6) ◽

pp. 137-142 ◽

Cited By ~ 1

Author(s):

S. Dalela ◽

B. Dalela ◽

Neena D ◽

P.A. Alvi

Keyword(s):

Synchrotron Radiation ◽

Single Crystal ◽

Exafs Study

Polarization dependent EXAFS study of Bi[sub 2]Sr[sub 2]Ca[sub 0.4]Pr[sub 0.6]Cu[sub 2]O[sub 8−δ] insulating single crystal

10.1063/1.1363076 ◽

2001 ◽

Author(s):

S. Dalela

Keyword(s):

Single Crystal ◽

Exafs Study

Czochralski growth of Tb3Sc2Al3O12 single crystal for Faraday rotator

Materials Research Bulletin ◽

10.1016/s0025-5408(01)00788-7 ◽

2002 ◽

Vol 37 (1) ◽

pp. 1-10 ◽

Cited By ~ 30

Author(s):

A Yoshikawa ◽

Y Kagamitani ◽

D.A Pawlak ◽

H Sato ◽

H Machida ◽

...

Keyword(s):

Single Crystal ◽

Czochralski Growth ◽

Faraday Rotator

New Garnet Films for Magneto-Optical Photonic Crystals

MRS Proceedings ◽

10.1557/proc-834-j1.4 ◽

2004 ◽

Vol 834 ◽

Author(s):

S.I. Khartsev ◽

A.M. Grishin

Keyword(s):

Photonic Crystals ◽

Single Crystal ◽

Pulsed Laser ◽

Rf Magnetron Sputtering ◽

Refraction Index ◽

Laser Deposition ◽

Faraday Rotator ◽

Garnet Films ◽

Reflectivity Spectra ◽

Fresnel Formulas

ABSTRACTEpitaxial La3Ga5O12 (LGG) garnet films and Bi3Fe5O12/La3Ga5O12 (BIG/LGG) heteroepitaxial structures have been synthesized on Gd3Ga5O12(GGG, 111) single crystal. LGG films were grown by Pulsed Laser Deposition (PLD) technique whereas rf-magnetron sputtering was used to grow BIG films. We demonstrate LGG is a promising material to be integrated with a giant Faraday rotator Bi3Fe5O12 in magneto-optical photonic crystals. LGG has a lattice constant 12.772 Å that is bigger than that in GGG (12.384 Å) and closer to that in BIG (12.626 Å). Heteroepitaxial Bi3Fe5O12(2μm)/La3Ga5O12(300nm) structures grown on the GGG(111) single crystal show the Faraday rotation as high as 5.74 deg/μm compared to 5.46 deg/μm in BIG/GGG at λ = 655 nm. Fitting LGG reflectivity spectra to Fresnel formulas yields LGG refractive index n = 1.981 compared to 1.963 in GGG at 655 nm. Dispersion of LGG refraction index follows Sellmeier formula n2 = 1 + 2.78/ [1 – (138nm/λ)2] in the range from 400 nm to 1000 nm.

Growth of Single Crystal Copper Films on Diamond Using Fcc-Iron Seed Layers

MRS Proceedings ◽

10.1557/proc-339-241 ◽

1994 ◽

Vol 339 ◽

Author(s):

D. P. Pappas ◽

V. G. Harris ◽

H. A. Hoff ◽

G. L. Watena ◽

J. W. Glesener

Keyword(s):

Single Crystal ◽

Seed Layer ◽

Copper Films ◽

Cu Films ◽

Fee Structure ◽

Diamond Substrate ◽

Single Crystal Diamond ◽

Exafs Study ◽

X Ray Absorption ◽

Seed Layers

ABSTRACTCopper films were grown on a single crystal diamond substrate using an iron seed layer. The effect of the crystalline structure of the iron seed on the Cu films was studied with extended x-ray absorption fine structure (EXAFS) and scanning electron microscopy (SEM). The EXAFS study shows that the 10 Å Fe seed layer is in an fee structure, and has collapsed into a bec structure by the time 20 Å of Fe has been deposited. In the SEM pictures it is observed that subsequent layers of Cu grow as continuous films for thin fcc-Fe seeds, and grow in an island mode for the thick, bcc-Fe seeds.

A Preparation of High Resolution Standards for Electron Microscopy. Part II

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100064852 ◽

1971 ◽

Vol 29 ◽

pp. 160-161

Author(s):

Akira Tanaka ◽

David F. Harling

Keyword(s):

Electron Microscopy ◽

High Resolution ◽

Carbon Black ◽

Single Crystal ◽

Dark Field ◽

Graphitized Carbon Black ◽

Graphitized Carbon ◽

Dark Field Imaging ◽

Crystal Films ◽

Micro Holes

In the previous paper, the author reported on a technique for preparing vapor-deposited single crystal films as high resolution standards for electron microscopy. The present paper is intended to describe the preparation of several high resolution standards for dark field microscopy and also to mention some results obtained from these studies. Three preparations were used initially: 1.) Graphitized carbon black, 2.) Epitaxially grown particles of different metals prepared by vapor deposition, and 3.) Particles grown epitaxially on the edge of micro-holes formed in a gold single crystal film.The authors successfully obtained dark field micrographs demonstrating the 3.4Å lattice spacing of graphitized carbon black and the Au single crystal (111) lattice of 2.35Å. The latter spacing is especially suitable for dark field imaging because of its preparation, as in 3.), above. After the deposited film of Au (001) orientation is prepared at 400°C the substrate temperature is raised, resulting in the formation of many square micro-holes caused by partial evaporation of the Au film.