paper

Temperature-dependent structure of an intermetallic ErPdSi single crystal: A combined synchrotron and in-house X-ray diffraction study

arXiv:2203.16212 · doi:10.1017/S0885715622000100

Abstract

We have grown intermetallic ErPdSi single crystals employing laser-diodes with the floating-zone method. The temperature-dependent crystallography was determined using synchrotron and in-house X-ray powder diffraction measurements from 20 to 500 K. The diffraction patterns fit well with the tetragonal 4/ space group (No. 139) with two chemical formulas within one unit cell. Our synchrotron X-ray powder diffraction study shows that the refined lattice constants are = 4.10320(2) Å, = 9.88393(5) Å at 298 K and = 4.11737(2) Å, = 9.88143(5) Å at 500 K, resulting in the unit-cell volume = 166.408(1) Å (298 K) and 167.517(2) Å (500 K). In the whole studied temperature range, we did not find any structural phase transition. Upon cooling, the lattice constants a and c are shortened and elongated, respectively.

5 Figures, 4 Tables

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