High temperature tetragonal crystal structure of UPt₂Si₂

2020/02/27 by K. Prokes, Prokes, K., O. Fabelo +7
Physics and Astronomy · #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.2002.12045

5 Figures, 3 Tables

arxiv created 2020/02/27 · arxiv updated 2020/02/28

Abstract

High temperature crystal structure of UPt₂Si₂ determined using single-crystal neutron diffraction at 400 K is reported. It is found that the crystal structure remains of the primitive tetragonal CaBe₂Ge₂ type with the space group P4/n m m. Anisotropic displacement factors of the Pt atoms at the 2a (3/4 1/4 0) and Si atoms at the 2c (1/4 1/4 z) Wyckoff sites are found to be anomalously large.

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