Stable and metastable structures of tin (IV) oxide at high pressure-Reference-Cited by-同舟云学术

Stable and metastable structures of tin (IV) oxide at high pressure

Published:2023-08-28 Issue:2258 Volume:381 Page:
ISSN:1364-503X
Container-title:Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
language:en
Short-container-title:Phil. Trans. R. Soc. A.

Author:

Sneed Daniel T.¹²^ORCID,Smith G. Alexander³⁴,Kearney John S. C.²⁴,Childs Christian²⁵,Park Changyong⁶^ORCID,Lawler Keith V.³,Salamat Ashkan²³^ORCID,Smith Dean³^ORCID

Affiliation:

1. Physics Division, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA

2. Department of Physics & Astronomy, University of Nevada, Las Vegas, Las Vegas, NV 89154, USA

3. Nevada Extreme Conditions Laboratory, University of Nevada, Las Vegas, Las Vegas, NV 89154, USA

4. Department of Chemistry & Biochemistry, University of Nevada, Las Vegas, Las Vegas, NV 89154, USA

5. Materials Science Division, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA

6. HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, IL 60439, USA

Abstract

We have analysed SnO 2 with a combination of synchrotron X-ray diffraction and X-ray absorption spectroscopy across a pressure range of 0 → 82.9 GPa with thermal annealing by a CO 2 laser allowing access to all of the known high-density polymorphs of SnO 2 , and here report their crystallographic information. The metastability of the post-rutile α - PbO 2 and PdF 2 structures in SnO 2 are investigated by experiment and PW-DFT simulations, revealing a complex energetic landscape and suggesting a significant dependence of the observed phases on the pressure–temperature pathway taken in experiment. This article is part of the theme issue ‘Exploring the length scales, timescales and chemistry of challenging materials (Part 1)’.

Funder

Air Force Office of Scientific Research

Publisher

The Royal Society

Subject

General Physics and Astronomy,General Engineering,General Mathematics

Link

https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2022.0346

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