Abstract
Powder diffraction data collected at {proportional_to} 86 keV, and just below both the Pb and the Bi K-edges, on an imaging plate detector using synchrotron radiation from the Advanced Photon Source have been used to examine the Pb/Bi distribution over the 11 crystallographically distinct sites in Pb{sub 5}Bi{sub 6}Se{sub 14} [space group P2{sub 1}/m, a=16.0096(2) Aa, b=4.20148(4) Aa, c=21.5689(3) Aa and {beta}=97.537(1){sup 0}]. The scattering factors needed for the analyses were determined both by Kramers- Kronig transformation of absorption spectra and by analyses of diffraction patterns from reference compounds. Even with the relatively low scattering contrast that is available at the K-edges, it was possible to determine the Pb/Bi distribution and probe the presence of cation site vacancies in the material. The current results indicate that resonant scattering measurements at high-energy K-edges are a viable, and perhaps preferable, route to site occupancies when absorption from the sample or sample environment/container is a major barrier to the acquisition of high-quality resonant scattering data at lower-energy edges.
Yuegang, Zhang;
Lee, P L;
Shastri, S D;
Deming, Shu;
[1]
Wilkinson, A P;
[2]
Duck-Young, Chung;
Kanatzidis, M G
[3]
- Argonne National Lab., IL (United States). XOR, Advanced Photon Source
- Georgia Inst. of Tech., Atlanta (United States). School of Chemistry and Biochemistry
- Michigan State Univ., East Lansing (United States). Dept. of Chemistry
Citation Formats
Yuegang, Zhang, Lee, P L, Shastri, S D, Deming, Shu, Wilkinson, A P, Duck-Young, Chung, and Kanatzidis, M G.
Determining metal ion distributions using resonant scattering at very high-energy K-edges: Bi/Pb in Pb{sub 5}Bi{sub 6}Se{sub 14}.
Denmark: N. p.,
2005.
Web.
doi:10.1107/S0021889805005686.
Yuegang, Zhang, Lee, P L, Shastri, S D, Deming, Shu, Wilkinson, A P, Duck-Young, Chung, & Kanatzidis, M G.
Determining metal ion distributions using resonant scattering at very high-energy K-edges: Bi/Pb in Pb{sub 5}Bi{sub 6}Se{sub 14}.
Denmark.
https://doi.org/10.1107/S0021889805005686
Yuegang, Zhang, Lee, P L, Shastri, S D, Deming, Shu, Wilkinson, A P, Duck-Young, Chung, and Kanatzidis, M G.
2005.
"Determining metal ion distributions using resonant scattering at very high-energy K-edges: Bi/Pb in Pb{sub 5}Bi{sub 6}Se{sub 14}."
Denmark.
https://doi.org/10.1107/S0021889805005686.
@misc{etde_20623331,
title = {Determining metal ion distributions using resonant scattering at very high-energy K-edges: Bi/Pb in Pb{sub 5}Bi{sub 6}Se{sub 14}}
author = {Yuegang, Zhang, Lee, P L, Shastri, S D, Deming, Shu, Wilkinson, A P, Duck-Young, Chung, and Kanatzidis, M G}
abstractNote = {Powder diffraction data collected at {proportional_to} 86 keV, and just below both the Pb and the Bi K-edges, on an imaging plate detector using synchrotron radiation from the Advanced Photon Source have been used to examine the Pb/Bi distribution over the 11 crystallographically distinct sites in Pb{sub 5}Bi{sub 6}Se{sub 14} [space group P2{sub 1}/m, a=16.0096(2) Aa, b=4.20148(4) Aa, c=21.5689(3) Aa and {beta}=97.537(1){sup 0}]. The scattering factors needed for the analyses were determined both by Kramers- Kronig transformation of absorption spectra and by analyses of diffraction patterns from reference compounds. Even with the relatively low scattering contrast that is available at the K-edges, it was possible to determine the Pb/Bi distribution and probe the presence of cation site vacancies in the material. The current results indicate that resonant scattering measurements at high-energy K-edges are a viable, and perhaps preferable, route to site occupancies when absorption from the sample or sample environment/container is a major barrier to the acquisition of high-quality resonant scattering data at lower-energy edges.}
doi = {10.1107/S0021889805005686}
journal = []
issue = {3}
volume = {38}
journal type = {AC}
place = {Denmark}
year = {2005}
month = {Jun}
}
title = {Determining metal ion distributions using resonant scattering at very high-energy K-edges: Bi/Pb in Pb{sub 5}Bi{sub 6}Se{sub 14}}
author = {Yuegang, Zhang, Lee, P L, Shastri, S D, Deming, Shu, Wilkinson, A P, Duck-Young, Chung, and Kanatzidis, M G}
abstractNote = {Powder diffraction data collected at {proportional_to} 86 keV, and just below both the Pb and the Bi K-edges, on an imaging plate detector using synchrotron radiation from the Advanced Photon Source have been used to examine the Pb/Bi distribution over the 11 crystallographically distinct sites in Pb{sub 5}Bi{sub 6}Se{sub 14} [space group P2{sub 1}/m, a=16.0096(2) Aa, b=4.20148(4) Aa, c=21.5689(3) Aa and {beta}=97.537(1){sup 0}]. The scattering factors needed for the analyses were determined both by Kramers- Kronig transformation of absorption spectra and by analyses of diffraction patterns from reference compounds. Even with the relatively low scattering contrast that is available at the K-edges, it was possible to determine the Pb/Bi distribution and probe the presence of cation site vacancies in the material. The current results indicate that resonant scattering measurements at high-energy K-edges are a viable, and perhaps preferable, route to site occupancies when absorption from the sample or sample environment/container is a major barrier to the acquisition of high-quality resonant scattering data at lower-energy edges.}
doi = {10.1107/S0021889805005686}
journal = []
issue = {3}
volume = {38}
journal type = {AC}
place = {Denmark}
year = {2005}
month = {Jun}
}