Study of the rare-earth-oxygen interaction in iron by lattice location and perturbed-angular- correlation experiments

1976 ◽  
Vol 14 (7) ◽  
pp. 2787-2794 ◽  
Author(s):  
L. Thomé ◽  
H. Bernas ◽  
F. Abel ◽  
M. Bruneaux ◽  
C. Cohen ◽  
...  
Keyword(s):  
Rare Earth ◽  
Angular Correlation ◽  
Perturbed Angular Correlation ◽  
Lattice Location ◽  
Oxygen Interaction ◽  
The Rare Earth

scholarly journals Diffusion in Binary and Pseudo-Binary L12 Indides, Stannides, Gallides and Aluminides of Rare-Earth Elements as Studied Using Perturbed Angular Correlation of 111In/Cd

2012 ◽  
Vol 323-325 ◽  
pp. 447-452
Author(s):  
Randal Newhouse ◽  
Justine Minish ◽  
Gary S. Collins
Keyword(s):  
Rare Earth ◽  
Angular Correlation ◽  
Perturbed Angular Correlation ◽  
Diffusion Mechanism ◽  
Jump Frequency ◽  
Quadrupole Relaxation ◽  
System A ◽  
Field Gradients ◽  
Ordered Intermetallic ◽  
Jump Frequencies

Diffusional jumps can produce fluctuating electric field gradients at nuclei of jumping atoms. Using perturbed angular correlation of gamma rays (PAC), jumps of probe atoms cause nuclear quadrupole relaxation that can be fitted to obtain the mean jump frequency. An overview is given of the application of this approach to highly ordered intermetallic compounds having the L12(Cu3Au) crystal structure. New results are then presented for jump frequencies of111In/Cd probe atoms in pseudo-binary L12compounds of the forms In3(La1-xPrx) and (In1-xSnx)3La. For the mixed rare-earth system, jump frequencies are found to scale with composition between jump frequencies of the end-member phases In3La and In3Pr. However, for the mixed sp-element system, a large decrease in jump frequency is observed as Sn atoms substitute for In-atoms. This difference in behavior appears to depend on whether atomic disorder is on the diffusion sublattice (In-Sn substitution), as opposed to a neighboring sublattice (La-Pr substitution), whether or not there is a difference in diffusion mechanism between end-member phases, and/or whether or not there is a valence difference between the mixing atoms. All three conditions apply for only (In1-xSnx)3La.

Study of the rare-earth oxygen interaction in rare-earth implanted iron

1976 ◽  
Vol 2 (1) ◽  
pp. 350-351 ◽  
Author(s):  
L. Thom� ◽  
H. Bernas ◽  
J. Chaumont ◽  
F. Abel ◽  
M. Bruneaux ◽  
...  
Keyword(s):  
Rare Earth ◽  
Oxygen Interaction ◽  
The Rare Earth

Lattice Location of 181Ta and 111Cd Probes in Hafnium and Zirconium Aluminides Studied by Perturbed Angular Correlation

HFI/NQI 2004 ◽  
2008 ◽  
pp. 339-345
Author(s):  
P. Wodniecki ◽  
A. Kulińska ◽  
B. Wodniecka ◽  
M. Uhrmacher ◽  
K. P. Lieb
Keyword(s):  
Angular Correlation ◽  
Perturbed Angular Correlation ◽  
Lattice Location

Lattice Location of 181Ta and 111Cd Probes in Hafnium and Zirconium Aluminides Studied by Perturbed Angular Correlation

2004 ◽  
Vol 158 (1-4) ◽  
pp. 339-345 ◽  
Author(s):  
P. Wodniecki ◽  
A. Kulińska ◽  
B. Wodniecka ◽  
M. Uhrmacher ◽  
K. P. Lieb
Keyword(s):  
Angular Correlation ◽  
Perturbed Angular Correlation ◽  
Lattice Location
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