Can I read High pressure structural and lattice dynamics study of {\alpha}-In$ 2$Se$ 3$ on EtoBox?

High pressure structural and lattice dynamics study of {\alpha}-In$ 2$Se$ 3$ by Feng, Shiyu; Sun, Baihong; Lu, Wenting; Zou, Haikai; Wei, Chenxin; Zhang, Qian; Wang, Bihan; Kunz, Martin; Kadobayashi, Hirokazu; Ahmad, Azkar Saeed; Koren, Elad; Stavrou, Elissaios is a scholarly article available to read on EtoBox.

What is High pressure structural and lattice dynamics study of {\alpha}-In$ 2$Se$ 3$ about?

Layered $\alpha$-In$_2$Se$_3$has been studied using a concomitant in-situ synchrotron angle dispersive powder x-ray diffraction and Raman spectroscopy study in a diamond anvil cell up to 60+ GPa, at room temperature. Helium, that remains fairly hydrostatic up to the highest pressure in this study, was used as the pressure-transmitting medium. The results from both experimental methods reveal a pressure-induced structural phase transition from $\alpha$-In$_2$Se$_3$ to a monoclinic $\beta$'-In2Se3 structure at $\approx$1 GPa, in agreement with previous studies. Based on our detailed measurements using both experimental techniques and F-f formalism, the $\beta$'-In$_2$Se$_3$ structure remains stable up to 45 GPa, without a clear indication of a phase transition towards the previously reported $\beta$-In2Se3 phase. Above this pressure, In$_2$Se$_3$ adopts a disordered solid-solution-like orthorhombic structure, phase IV. The results are discussed in comparison with the relevant previous studies of $\alpha$-In$_2$Se$_3$ under pressure.

Author

Feng, Shiyu; Sun, Baihong; Lu, Wenting; Zou, Haikai; Wei, Chenxin; Zhang, Qian; Wang, Bihan; Kunz, Martin; Kadobayashi, Hirokazu; Ahmad, Azkar Saeed; Koren, Elad; Stavrou, Elissaios

Published

2025

Language

EN