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Title: TDPAC study of complex structure semiconductor compounds; The case niobium pentoxide

Abstract

In this paper, a new method for analyzing Time-Differential Perturbed Angular Correlation spectra is presented and applied to study the hyperfine interaction of {sup 100}Rh in the high temperature modification of niobium pentoxide. The measured quadrupole interactions are assigned to about 80% of the radioactive probes replacing niobium atoms in the lattice and about 20% located in perturbed sites. The origin of this perturbation, producing a high frequency component in the measured spectra is discussed and temptatively assigned to remaining radiation damage in the compound. The hyperfine interaction of {sup 111}Cd probes, introduced through thermal diffusion into niobium pentoxide, is also presented. The temperature dependence of the hyperfine parameters in this case is studied in the temperature range RT-800{degrees}C. The spectral analyzing method employed allows a direct comparison of experimental data with point charge model calculations and a simultaneous evaluation of the anti-shielding factor {beta}. The obtained values (27 for {sup 100}Rh and 15 for {sup 111}Cd) are discussed in terms of the compound and probe's characteristics.

Authors:
; ; ; ;  [1]
  1. Dept. de Fisica, Facultad de Ciencias Exactas, Univ. Nacional de La Plata, C.C. No. 67, 1900 La Plata (AR)
Publication Date:
OSTI Identifier:
7203805
Resource Type:
Journal Article
Journal Name:
International Journal of Modern Physics B; (United States)
Additional Journal Information:
Journal Volume: 6:13; Journal ID: ISSN 0217-9792
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 74 ATOMIC AND MOLECULAR PHYSICS; HYPERFINE STRUCTURE; PERTURBED ANGULAR CORRELATION; NIOBIUM OXIDES; CRYSTAL STRUCTURE; RHODIUM 100; CADMIUM 111; CALCULATION METHODS; CORRELATIONS; MATRIX ISOLATION; MODIFICATIONS; POINT CHARGE; TEMPERATURE RANGE 1000-4000 K; THERMAL DIFFUSION; ANGULAR CORRELATION; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CADMIUM ISOTOPES; CHALCOGENIDES; DIFFUSION; ELECTRIC CHARGES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTO; MINUTES LIVING RADIOISOTOPES; NIOBIUM COMPOUNDS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; RADIOISOTOPES; REFRACTORY METAL COMPOUNDS; STABLE ISOTOPES; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties; 665100 - Nuclear Techniques in Condensed Matter Physics - (1992-); 664400 - Experimentally Derived Information on Atomic & Molecular Properties- (1992-)

Citation Formats

Shitu, J, Renteria, M, Massolo, C P, Bibiloni, A G, and Desimoni, J. TDPAC study of complex structure semiconductor compounds; The case niobium pentoxide. United States: N. p., 1992. Web. doi:10.1142/S0217979292001171.
Shitu, J, Renteria, M, Massolo, C P, Bibiloni, A G, & Desimoni, J. TDPAC study of complex structure semiconductor compounds; The case niobium pentoxide. United States. https://doi.org/10.1142/S0217979292001171
Shitu, J, Renteria, M, Massolo, C P, Bibiloni, A G, and Desimoni, J. 1992. "TDPAC study of complex structure semiconductor compounds; The case niobium pentoxide". United States. https://doi.org/10.1142/S0217979292001171.
@article{osti_7203805,
title = {TDPAC study of complex structure semiconductor compounds; The case niobium pentoxide},
author = {Shitu, J and Renteria, M and Massolo, C P and Bibiloni, A G and Desimoni, J},
abstractNote = {In this paper, a new method for analyzing Time-Differential Perturbed Angular Correlation spectra is presented and applied to study the hyperfine interaction of {sup 100}Rh in the high temperature modification of niobium pentoxide. The measured quadrupole interactions are assigned to about 80% of the radioactive probes replacing niobium atoms in the lattice and about 20% located in perturbed sites. The origin of this perturbation, producing a high frequency component in the measured spectra is discussed and temptatively assigned to remaining radiation damage in the compound. The hyperfine interaction of {sup 111}Cd probes, introduced through thermal diffusion into niobium pentoxide, is also presented. The temperature dependence of the hyperfine parameters in this case is studied in the temperature range RT-800{degrees}C. The spectral analyzing method employed allows a direct comparison of experimental data with point charge model calculations and a simultaneous evaluation of the anti-shielding factor {beta}. The obtained values (27 for {sup 100}Rh and 15 for {sup 111}Cd) are discussed in terms of the compound and probe's characteristics.},
doi = {10.1142/S0217979292001171},
url = {https://www.osti.gov/biblio/7203805}, journal = {International Journal of Modern Physics B; (United States)},
issn = {0217-9792},
number = ,
volume = 6:13,
place = {United States},
year = {Fri Jul 10 00:00:00 EDT 1992},
month = {Fri Jul 10 00:00:00 EDT 1992}
}