Luminescence studies of the rare earth ions-doped CaF2 and MgF2 films for wavelength conversion

2006 ◽  
Vol 408-412 ◽  
pp. 838-841 ◽  
Author(s):  
Byung-Chul Hong ◽  
Katsuyasu Kawano
Keyword(s):  
Rare Earth ◽  
Wavelength Conversion ◽  
Rare Earth Ions ◽  
The Rare Earth

scholarly journals On the Hydration of the Rare Earth Ions in Aqueous Solution

2020 ◽  
Vol 49 (3) ◽  
pp. 316-331 ◽  
Author(s):  
Wolfram W. Rudolph ◽  
Gert Irmer
Keyword(s):  
Aqueous Solution ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
The Rare Earth

The fluorescence of polyamidoamine dendrimers peripherally modified with 1,8-naphthalimide groups: Effect of the rare earth ions and protons

2007 ◽  
Vol 126 (2) ◽  
pp. 515-530 ◽  
Author(s):  
Shi-Ping Yang ◽  
Lin Lin ◽  
Liang-Zhun Yang ◽  
Jia-Min Chen ◽  
Qiong-Qiong Chen ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Polyamidoamine Dendrimers ◽  
The Rare Earth

Effects of the rare-earth ions on some properties of a nickel-zinc ferrite

1994 ◽  
Vol 6 (29) ◽  
pp. 5707-5716 ◽  
Author(s):  
N Rezlescu ◽  
E Rezlescu ◽  
C Pasnicu ◽  
M L Craus
Keyword(s):  
Rare Earth ◽  
Zinc Ferrite ◽  
Rare Earth Ions ◽  
Nickel Zinc ◽  
The Rare Earth

Influence of Sintering Temperature on the Thermoluminescence Spectra of MgSO4 Doped with RE(Tm,Dy) and Mn

2014 ◽  
Vol 664 ◽  
pp. 57-61
Author(s):  
Jing Yuan Guo ◽  
Qiang Tang ◽  
Li Gao ◽  
Ting Ting Lan ◽  
Chun Xiang Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Complex Structure ◽  
Rare Earth Ions ◽  
3 Dimensional ◽  
Luminescence Process ◽  
Co Doped ◽  
The Rare Earth

In this paper, MgSO4:Dy,MgSO4:Tm and MgSO4:Mn phosphors are prepare by high temperature solid state reaction. The MgSO4:Dy or MgSO4:Tm powder are mixed and sintered with MgSO4:Mn respectively to obtain the co-doped MgSO4:Dy,Mn and MgSO4:Tm,Mn phosphors. The 3-dimensional thermoluminescence spectra of these two phosphors under different sintering temperature are measured.Results show that when the sintering temperature is below 800°C, Dy, Tm and Mn ions emissions are independent. However, when the sintering temperature was over 800°C, the emission peak of Mn becomes weaker, and so do the low temperature peaks of Dy and Tm, while the high temperature peaks of Dy and Tm become stronger. This indicated that the defect complex structure in the formation of the thermoluminescence material depends on the sintering temperature. As the sintering temperature rises, more and more Mn ions combine with the rare earth ions. Therefore, the luminescence process of the energy transfer of Mn ions to the rare earth ions can be observed and the suppression to low temperature peaks of Tm and Dy, and also shown in spectra.

TRANSPORT PROPERTIES OF THE RARE EARTH DISORDERED SYSTEMS (R1−xYbx)Ba2Cu3O7 (R = Y, Sm)

1988 ◽  
Vol 02 (06) ◽  
pp. 1395-1398
Author(s):  
J. R. HWANG ◽  
M. F. TAI ◽  
H. C. KU ◽  
W. N. WANG ◽  
K. H. LII
Keyword(s):  
Electrical Resistivity ◽  
Rare Earth ◽  
Conduction Electron ◽  
Disordered Systems ◽  
Magnetic Measurements ◽  
Mass Difference ◽  
Rare Earth Ions ◽  
Size Difference ◽  
Compositional Variation ◽  
The Rare Earth

Electrical and magnetic measurements have been carried out for the rare earth disordered superconducting copper oxide systems ( Y 1−x Yb x) Ba 2 Cu 3 O 7 (substitution with large rare earth mass difference) and ( Sm 1−x Yb x) Ba 2 Cu 3 O 7 (substitution with large rare earth ionic size difference). Effect of compositional variation upon room temperature electrical resistivity shows no disorder scattering contribution from the randomly distributed rare earth ions located on the (1/2, 1/2, 1/2) site of the space group Pmmm. This result indicates very low conduction electron density of states surrounding rare earth ions. On the contrary, negative deviation of electrical resistivity from the linear Vegard law was observed. This reduced conduction electron scattering was discussed through the variation of packing density, grain size and/or twin structure.

scholarly journals RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd): a new family of pyrochlore derivatives with rare earth ions on a 2D Kagome lattice

2016 ◽  
Vol 4 (3) ◽  
pp. 541-550 ◽  
Author(s):  
M. B. Sanders ◽  
J. W. Krizan ◽  
R. J. Cava
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Magnetic Frustration ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
New Family ◽  
Magnetic Ion ◽  
The Rare Earth

RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd) is a series of novel pyrochlore-related materials with 2D Kagome lattices formed by RE3+ and Sb5+. The rare earth is the only magnetic ion in the structure; this family is therefore an archetype for exploring magnetic frustration on a 2D Kagome lattice.

scholarly journals Location of the energy levels of the rare-earth ions in BaF2 and CdF2

2008 ◽  
Vol 50 (9) ◽  
pp. 1639-1643 ◽  
Author(s):  
P. A. Rodnyĭ ◽  
I. V. Khodyuk ◽  
G. B. Stryganyuk
Keyword(s):  
Rare Earth ◽  
Energy Levels ◽  
Rare Earth Ions ◽  
The Rare Earth
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