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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577519003904
|2 doi
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|a pubmed25n0996.xml
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|a (DE-627)NLM298879565
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|a (NLM)31274450
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Sneed, Daniel
|e verfasserin
|4 aut
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|a Probing disorder in high-pressure cubic tin (IV) oxide
|b a combined X-ray diffraction and absorption study
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 17.02.2020
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|a Date Revised 17.02.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The transparent conducting oxide, SnO2, is a promising optoelectronic material with predicted tailorable properties via pressure-mediated band gap opening. While such electronic properties are typically modeled assuming perfect crystallinity, disordering of the O sublattice under pressure is qualitatively known. Here a quantitative approach is thus employed, combining extended X-ray absorption fine-structure (EXAFS) spectroscopy with X-ray diffraction, to probe the extent of Sn-O bond anharmonicities in the high-pressure cubic (Pa\bar{3}) SnO2 - formed as a single phase and annealed by CO2 laser heating to 2648 ± 41 K at 44.5 GPa. This combinational study reveals and quantifies a large degree of disordering in the O sublattice, while the Sn lattice remains ordered. Moreover, this study describes implementation of direct laser heating of non-metallic samples by CO2 laser alongside EXAFS, and the high quality of data which may be achieved at high pressures in a diamond anvil cell when appropriate thermal annealing is applied
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|a Journal Article
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|a EXAFS
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|a SnO2
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|a XRD
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|a diamond anvil cell
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|a extreme conditions
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|a high pressure
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|a laser heating
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|a Tin Compounds
|2 NLM
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|a stannic oxide
|2 NLM
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|a KM7N50LOS6
|2 NLM
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|a Kearney, John S C
|e verfasserin
|4 aut
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1 |
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|a Smith, Dean
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Smith, Jesse S
|e verfasserin
|4 aut
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1 |
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|a Park, Changyong
|e verfasserin
|4 aut
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| 700 |
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|a Salamat, Ashkan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 26(2019), Pt 4 vom: 01. Juli, Seite 1245-1252
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnas
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| 773 |
1 |
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|g volume:26
|g year:2019
|g number:Pt 4
|g day:01
|g month:07
|g pages:1245-1252
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|u http://dx.doi.org/10.1107/S1600577519003904
|3 Volltext
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|d 26
|j 2019
|e Pt 4
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|h 1245-1252
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