Matches in SemOpenAlex for { <https://semopenalex.org/work/W2338851022> ?p ?o ?g. }
- W2338851022 abstract "The local structure of ${mathrm{IrTe}}_{2}$ has been studied by iridium ${L}_{3}$-edge x-ray absorption spectroscopy (XAS) measurements as a function of pressure, performed at two temperatures (100 and 295 K) across the structural phase transition at $ensuremath{sim}270$ K. Extended x-ray absorption fine structure (EXAFS) and x-ray absorption near-edge structure (XANES) spectra show pressure-dependent anomalies, suggesting phase transitions that are characterized by different local atomic displacements. The high-temperature phase of ${mathrm{IrTe}}_{2}$ (trigonal at 295 K) reveals a clear anomaly in the Ir-Te correlations at $ensuremath{sim}4$ GPa, while the low-temperature phase (at 100 K) shows a smaller change at $ensuremath{sim}6$ GPa, likely to be associated with transitions in lower-symmetry phases. XANES spectra, measuring higher-order atomic correlations, also show nonlinear pressure dependence in the local geometry at the anomalous pressures. These nonlinear changes suggest that ${mathrm{IrTe}}_{2}$ goes through lower local symmetry phases with increasing pressure." @default.
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- W2338851022 date "2016-04-18" @default.
- W2338851022 modified "2023-10-03" @default.
- W2338851022 title "Pressure dependence of the local structure of iridium ditelluride across the structural phase transition" @default.
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- W2338851022 doi "https://doi.org/10.1103/physrevb.93.134109" @default.
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