Synthesis and characterization of superconducting YbBa2Cu3O7−δ and Y1−xLuxBa2Cu3O7−δ (0.0 < x < 0.75): Lower limit of the rare-earth ion radius tolerated in the 123 cuprate system

1990 ◽  
Vol 25 (3) ◽  
pp. 331-335 ◽  
Author(s):  
P. Somasundaram ◽  
A.Mohan Ram ◽  
A.M. Umarji ◽  
C.N.R. Rao
2012 ◽  
Vol 4 (2) ◽  
pp. 65-72 ◽  
Author(s):  
Rita John ◽  
Rajaram Rajakumari

2014 ◽  
Vol 884-885 ◽  
pp. 247-250 ◽  
Author(s):  
Kai Sheng ◽  
Jie Lin Wang ◽  
Ying Li ◽  
Yi Han Wang ◽  
Meng Xue Xu ◽  
...  

Selecting lactam 2,6-pyridinedicarboxamide (PDCA) as the ligand and 1,4-butanediol as chain extender, we prepare polyurea polyurethane PDCA-PU; then, introduction of rare earth ion Eu3+ and small molecule ligands 1,10-phenanthroline (phen), synthesized binary and ternary polyurethane composite containing Eu3+, and comparing the fluorescence properties of the material. We investigated the thermal stability and luminescence properties of hybrids and found that the ternary hybrid materials exhibit better thermal stability and stronger emission intensity.


2010 ◽  
Vol 13 (1-2) ◽  
pp. 17
Author(s):  
K.V.R. Murthy ◽  
K. Suresh ◽  
B. Nageswara Rao ◽  
B. Walter Ratna Kumar ◽  
Ch. Atchyutha Rao ◽  
...  

<p>The present paper reports the Photoluminescence (PL) of the Sr<sub>2</sub>CeO<sub>4</sub> phosphor, singly doped with Erbium rare-earth ion with different concentrations (0.01, 0.1, 0.2, 0.5 and 1%).The phosphor samples were synthesized using the standard solid state reaction technique. The effect of Er dopant on the structural, morphological, and Photoluminescent properties of the samples are studied with X-ray diffraction (XRD), PL and SEM analysis. The PL emission of undoped Sr<sub>2</sub>CeO<sub>4</sub> phosphor was observed at 470 nm with high intensity followed by the primary Er emissions with good intensity at 525, 530, 549, 557 and 565 nm.</p>


2015 ◽  
Vol 44 (23) ◽  
pp. 10654-10660 ◽  
Author(s):  
Dariush Montasserasadi ◽  
Mark W. Granier ◽  
Leonard Spinu ◽  
Satish Chandra Rai ◽  
Weilie Zhou ◽  
...  

The Dion–Jacobson type layered perovskites, APrNb2O7 (A = Rb, Cs), can be readily exchanged with (CuCl)+ at low temperatures to produce, (CuCl)PrNb2O7, a compound that shows interesting 2D antiferromagnetic behavior.


ChemInform ◽  
2012 ◽  
Vol 43 (42) ◽  
pp. no-no
Author(s):  
Ernst Hinterregger ◽  
Gunter Heymann ◽  
Thomas S. Hofer ◽  
Hubert Huppertz

2012 ◽  
Vol 67 ◽  
pp. 0nnn
Author(s):  
Ernst Hinteregger ◽  
Gunter Heymann ◽  
Thomas S. Hofer ◽  
Hubert Huppertz

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