Effects of Rare-Earth-Ion Substitution upon the Fluorescent Lifetime of Terbium in the Compound Terbium Hexa-Antipyrene Tri-Iodide

1963 ◽  
Vol 53 (4) ◽  
pp. 494_1
Author(s):  
G. E. Peterson ◽  
P. M. Bridenbaugh
1987 ◽  
Vol 36 (7) ◽  
pp. 3603-3607 ◽  
Author(s):  
F. Zuo ◽  
B. R. Patton ◽  
D. L. Cox ◽  
S. I. Lee ◽  
Y. Song ◽  
...  

2005 ◽  
Vol 19 (06) ◽  
pp. 331-340 ◽  
Author(s):  
AHMET EKİCİBİL ◽  
ATILLA COŞKUN ◽  
BEKIR ÖZÇELİK ◽  
KERIM KIYMAÇ

In the present work, the magnetic properties of high-Tc Bi 1.7 Pb 0.3 Sr 2 Ca 2-x Sm x Cu 3 O 12 system (x = 0.03) have been investigated, for different temperatures below Tc. Substitution of Sm 3+ for Ca 2+ is found to change the superconducting properties of the system, despite the weak paramagnetic nature of the Sm 3+ ion. The dc magnetization measurements performed on the compound reveal that the superconducting regions decrease with increasing temperature and magnetic field. The results are explained on the basis of a possible reduction of hole concentration with trivalent rare-earth ion substitution, and also on the basis of the magnetic nature of the substituted Sm 3+ ions.


2001 ◽  
Vol 3 (7) ◽  
pp. 769-772 ◽  
Author(s):  
G Ilonca ◽  
A.V Pop ◽  
T.R Yang ◽  
I.Gr Deac ◽  
C Lung ◽  
...  

2017 ◽  
Vol 19 (30) ◽  
pp. 20110-20120 ◽  
Author(s):  
Athira K. V. Raj ◽  
P. Prabhakar Rao ◽  
T. S. Sreena ◽  
T. R. Aju Thara

The contrasting rare earth ion substitution in Ce0.9−xRExO2−δ:0.1Eu3+ elucidates the influence of the local structure and defect formation on photoluminescent properties.


2013 ◽  
Vol 15 (7) ◽  
pp. 073019 ◽  
Author(s):  
Takayoshi Katase ◽  
Hidenori Hiramatsu ◽  
Toshio Kamiya ◽  
Hideo Hosono

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3717
Author(s):  
Jae-Young Jung ◽  
Soung-Soo Yi ◽  
Dong-Hyun Hwang ◽  
Chang-Sik Son

The precursor prepared by co-precipitation method was sintered at various temperatures to synthesize crystalline manganese tungstate (MnWO4). Sintered MnWO4 showed the best crystallinity at a sintering temperature of 800 °C. Rare earth ion (Dysprosium; Dy3+) was added when preparing the precursor to enhance the magnetic and luminescent properties of crystalline MnWO4 based on these sintering temperature conditions. As the amount of rare earth ions was changed, the magnetic and luminescent characteristics were enhanced; however, after 0.1 mol.%, the luminescent characteristics decreased due to the concentration quenching phenomenon. In addition, a composite was prepared by mixing MnWO4 powder, with enhanced magnetism and luminescence properties due to the addition of dysprosium, with epoxy. To one of the two prepared composites a magnetic field was applied to induce alignment of the MnWO4 particles. Aligned particles showed stronger luminescence than the composite sample prepared with unsorted particles. As a result of this, it was suggested that it can be used as phosphor and a photosensitizer by utilizing the magnetic and luminescent properties of the synthesized MnWO4 powder with the addition of rare earth ions.


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