Comments on time-differential perturbed angular correlation functions for static axial electric quadrupole interaction

1994 ◽  
Vol 88 (1) ◽  
pp. 13-18
Author(s):  
J. Kuriplach ◽  
I. Novotný ◽  
I. Procházka
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Correlation Functions ◽  
Perturbed Angular Correlation ◽  
Electric Quadrupole ◽  
Electric Quadrupole Interaction ◽  
Time Differential

Quadrupole Interaction of 181Ta in Hafnium Oxychloride

1972 ◽  
Vol 50 (17) ◽  
pp. 2054-2057 ◽  
Author(s):  
H. Zmora ◽  
L. M. Lowe ◽  
W. V. Prestwich
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Electric Quadrupole ◽  
Electric Quadrupole Interaction ◽  
Γ Rays

The static electric quadrupole interaction of 181Ta in HfOCl2∙8H2O and HfOCl2∙4H2O, incorporating the perturbed angular correlation of the 133–482 keV γ-rays cascade, has been measured. The quadrupole interaction frequencies obtained were ω1 = (1356 ± 65) mrad/s for HfOCl2∙8H2O, and ω1 = (858 ± 40) mrad/s, η = 0.58 ± 0.01 for HfOCl2∙4H2O. Comparison with other measurements is given.

A special feature of the integral perturbed angular correlation method for the study of the electric quadrupole interaction

1977 ◽  
Vol 5 (1) ◽  
pp. 391-398 ◽  
Author(s):  
M. Rots ◽  
H. Ooms ◽  
J. Claes ◽  
F. Namavar ◽  
R. Coussement
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Correlation Method ◽  
Electric Quadrupole ◽  
Electric Quadrupole Interaction

Electric Quadrupole Interaction at 181Ta in Isostructural Orthorhombic Cu8Hf3 and Cu8Zr3 Compounds

1998 ◽  
Vol 53 (6-7) ◽  
pp. 355-357
Author(s):  
P. Wodniecki ◽  
B. Wodniecka ◽  
A. Kulińska ◽  
A. Z. Hrynkiewicz
Keyword(s):  
Electric Field ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Electric Quadrupole ◽  
Correlation Technique ◽  
Interaction Frequency ◽  
Electric Quadrupole Interaction ◽  
Electric Field Gradients ◽  
Field Gradients ◽  
Time Differential

Abstract The quadrupole interaction of 181Ta probes in isostructural Cu8Hf3 and Cu8Zr3 intermetallic compounds was studied in the temperature range 24 K -1100 K with the time-differential perturbed angular correlation technique. Two nonaxial electric field gradients corresponding to two nonequiv-alent hafnium or zirconium sites in the investigated structure were found. A linear decrease in the quadrupole interaction frequency with increase of temperature for the 8(d) sites was evidenced, while the vQ(T) dependence for the 4(c) sites is weaker and has a T3/2 character.

Electric Quadrupole Interaction of 111Cd in Semiconductors

1986 ◽  
Vol 41 (1-2) ◽  
pp. 104-108 ◽  
Author(s):  
M. Frank ◽  
F. Gubitz ◽  
W. Ittner ◽  
W. Kreische ◽  
A. Labahn ◽  
...  
Keyword(s):  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Electric Quadrupole ◽  
Correlation Technique ◽  
Electric Quadrupole Interaction ◽  
Quadrupole Frequency ◽  
Β Phase ◽  
Quadrupole Coupling ◽  
Time Differential ◽  
High Temperature Modification

The time differential perturbed angular correlation technique was applied to study the electricquadrupole interaction in various semiconductors. The quadrupole coupling of 111Cd in the InXand In2X3 compounds (X = S, Se, Te) are reported.In the orthorhombic InS we observed one quadrupole frequency which increases lineary withtemperature. The behaviour is the same in InTe. In InSe, however, the electric field gradient(EFG) scales with a T3/2power law, well known from former investigations in metals and semimetals.The strength of the interaction decreases from InS to InTe.The In2X3 semiconductors show several modifications. In2S3 exists in three phases and hasbeen investigated in the temperature range 25 K ≤ T ≤ 1200 K. In β-In2S3 (stable up to 693 K)two interaction frequencies have been observed. The high temperature modification γ-In2S3shows one EFG. In cubic α-In2S3 no EFG could be measured. In2Se3 exists in four modifications.The different phases and transition temperatures are not definite yet. In the β-phase (stablebetween 473 K and 823 K) we observed two energetically equal structures with different interactionfrequencies. Such a case has not yet been reported. In2Te3 has been investigated in theβ-phase only. The observed interaction is temperature independent. While in metals and semimetalsmost data can be well described by a T3/2 -dependence, semiconductors show differentresults.

The 111mCd Nuclear Quadrupole Interaction in CdCl2 and its Monohydrate

1992 ◽  
Vol 47 (1-2) ◽  
pp. 89-95
Author(s):  
Th. Fraenzke ◽  
T. Butz ◽  
A. Lerf
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Nuclear Quadrupole Interaction ◽  
Temperature Range ◽  
Time Differential ◽  
Nuclear Quadrupole

AbstractThe 111mCd nuclear quadrupole interaction in CdCl2 and CdCl2 • H2O was determined in the temperature range from 77 K to 783 K and 363 K, respectively, by time differential perturbed angular correlation. In addition, both the crystallization of the monohydrate from solution and its dehydration were monitored in situ.

111Cd-time differential perturbed angular correlation study of pressure effect on the hyperfine quadrupole interaction in the UGe2 cubic phase

2012 ◽  
Vol 541 ◽  
pp. 234-237 ◽  
Author(s):  
A.V. Tsvyashchenko ◽  
L.N. Fomicheva ◽  
A. Velichkov ◽  
A.V. Salamatin ◽  
O.I. Kochetov ◽  
...  
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Pressure Effect ◽  
Correlation Study ◽  
Cubic Phase ◽  
Time Differential ◽  
Hyperfine Quadrupole Interaction

Applications of Nuclear Quadrupole Interactions in Materials Research

1998 ◽  
Vol 53 (6-7) ◽  
pp. 340-348 ◽  
Author(s):  
Zhu Shengyun
Keyword(s):  
Angular Correlation ◽  
Quadrupole Interaction ◽  
Perturbed Angular Correlation ◽  
Nuclear Quadrupole Interaction ◽  
Quadrupole Interactions ◽  
Nuclear Quadrupole Interactions ◽  
Time Differential ◽  
Materials Research ◽  
Microscopic Studies ◽  
Nuclear Quadrupole

Abstract The principle of the time differential perturbed angular correlation and distribution technique which measures the nuclear quadrupole interaction is briefly described. Some examples are given to show the possibilities of this technique in microscopic studies of materials.

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