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- W4386907074 abstract "$mathrm{AuSn_4}$ is the example of an orthorhombic compound that exhibits topological properties. Recent XRD measurements reveal an ambiguous nature of the crystal structure, as it can be realized with either Aea2 or Ccca symmetry. Motivated by this, we analyze the dynamical stability of the compound with these symmetries. Interestingly, our main result indicates that $mathrm{AuSn_4}$ is unstable with both Aea2 and Ccca symmetries, due to the soft modes in the phonon spectra. We find that the $mathrm{AuSn_4}$ can be stable with Pbcm at low temperatures using the soft mode analysis. We also show that the theoretical electronic spectra are well reproduced, and have a good resemblance with the experimental ARPES spectra. Our findings may be valuable to the theoretical investigations of $mathrm{AuSn_4}$ in future." @default.
- W4386907074 created "2023-09-21" @default.
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- W4386907074 date "2023-09-19" @default.
- W4386907074 modified "2023-09-27" @default.
- W4386907074 title "Stability of AuSn$_{4}$ compound in low temperature" @default.
- W4386907074 doi "https://doi.org/10.48550/arxiv.2309.10571" @default.
- W4386907074 hasPublicationYear "2023" @default.
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