Theoretical study on isostructural pressure-induced phase transition of solid ethane at extremely low temperature

The stable crystalline phase of ethane at atmospheric pressure can only exist at extremely low temperatures, but the pressure-induced phase transition of ethane at these low temperatures has received little attention from researchers. Based on the calculations of Raman vibrational modes and 2D finge...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2024-03, Vol.124 (10)
Main Authors: Zhu, Sheng-Hai, Cheng, Xin-Lu, Liu, Qi-Jun, Liu, Zheng-Tang
Format: Article
Language:English
Subjects:
Ethane
Low temperature
Phase transitions
Room temperature
Vibration mode
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The stable crystalline phase of ethane at atmospheric pressure can only exist at extremely low temperatures, but the pressure-induced phase transition of ethane at these low temperatures has received little attention from researchers. Based on the calculations of Raman vibrational modes and 2D fingerprints of P21/n-C2H6 under different pressures, we found that ethane at 0 K exhibits an isostructural phase transition under 3 GPa. The extremely low temperature (0 K) suppresses the appearance of room temperature crystalline plastic phase A but promotes the higher-pressure phase B at the lower pressure point.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0197256