Spectroscopy of the rare-earth-ion transitions in fluoride glasses

2022 ◽  
pp. 333-399
Author(s):  
Stuart Jackson ◽  
Shigeki Tokita ◽  
Mathew R. Majewski ◽  
Ori Henderson-Sapir ◽  
David J. Ottaway ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ion ◽  
Fluoride Glasses ◽  
The Rare Earth

Internal Friction Study of the Rare Earth Ion Substituted Fast Oxide-Ion Conductors (La1-ΧreΧ)2Mo2O9 (Re=Nd, Gd)

2012 ◽  
Vol 184 ◽  
pp. 110-115
Author(s):  
X.P. Wang ◽  
J. Hu ◽  
Zhong Zhuang ◽  
Tao Zhang ◽  
Qian Feng Fang
Keyword(s):  
Phase Transition ◽  
Rare Earth ◽  
Internal Friction ◽  
Diffusion Processes ◽  
Rare Earth Ion ◽  
Disorder Transition ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
The Rare Earth ◽  
Ion Conductors

The relaxation and phase transition behaviors of rare-earth ion substituted fast oxide-ion conductors (La1-xRex)2Mo2O9 (Re=Nd, Gd) were investigated by internal friction (IF) measurement in the temperature range 300 K - 950 K. Three different IF peaks (labeled as PL, PH, and PG, respectively) were observed in the rare-earth ion doped La2Mo2O9 samples. Peak PL corresponds to short diffusion processes of oxygen ions among different oxygen vacancy sites. Peak PH is associated with the static/dynamic disorder transition in oxygen ion distribution. Peak PG is a newly discovered peak embodying phase transition-like characteristics and is suggested to be related to order-disorder transition associated with the rearrangement of La/ Re sub-lattice.

Crystalline field at the rare earth ion in the erbium gallium garnet

1964 ◽  
Vol 2 (8) ◽  
pp. iv
Author(s):  
J. Verdone ◽  
M. Veyssie ◽  
B. Dreyfus
Keyword(s):  
Rare Earth ◽  
Rare Earth Ion ◽  
Crystalline Field ◽  
The Rare Earth

THE EFFECT OF BETA-DECAY ON THE EXCHANGE PROPERTIES OF THE RARE EARTH–EDTA COMPLEX IONS

1961 ◽  
Vol 39 (5) ◽  
pp. 1049-1053 ◽  
Author(s):  
P. Glentworth ◽  
R. H. Betts
Keyword(s):  
Rare Earth ◽  
Metal Ion ◽  
Chemical Reactivity ◽  
Sudden Change ◽  
Chelating Agent ◽  
Beta Particle ◽  
Central Metal ◽  
Complex Ions ◽  
Rare Earth Ion ◽  
The Rare Earth

It is shown that the rare earth ion Yb3+ is very resistant towards ordinary thermal exchange when it is complexed with the chelating agent EDTA in aqueous solution. However, when the complexed rare earth atom, as the 1.8-h Yb-177, emits a beta-particle, the daughter atom Lu-177 escapes readily from the chelate structure. Nuclear recoil arising from the beta-particle emission is shown not to be the cause of the escape of the daughter atom. It is suggested that the observed lability of the daughter atom is a result of a high degree of chemical reactivity of the chelate ion arising from the sudden change in atomic number of the central metal ion of the chelate structure.

Zeeman effect and stark splitting of the electronic states of the rare-earth ion in the paramagnetic terbium garnets Tb3Ga5O12 and Tb3Al5O12

2007 ◽  
Vol 49 (1) ◽  
pp. 91-98 ◽  
Author(s):  
U. V. Valiev ◽  
J. B. Gruber ◽  
D. K. Sardar ◽  
B. Zandi ◽  
I. S. Kachur ◽  
...  
Keyword(s):  
Rare Earth ◽  
Zeeman Effect ◽  
Electronic States ◽  
Rare Earth Ion ◽  
Stark Splitting ◽  
The Rare Earth
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