Irina Chuvashova
Former Postdoctoral Fellow

Postdoctoral Fellow

Research Interests

High pressure; matter at extreme states

Academics

B.S., Inorganic chemistry, Lomonosov Moscow State University, 2014; Ph.D., Ph.D., Crystallography, University of Bayreuth, 2017

Contact & Links

  • 202-478-8900
  • Earth and Planets Laboratory
    Carnegie Institution for Science
    5241 Broad Branch Road, NW
    Washington, DC 20015-1305
  • Personal Website

Overview

Phase transitions under high pressure
Molecular solid hydrogen was expected to be metallized and dissociate into an atomic phase at extremely high pressure (~0.4 TPa), although it has not yet been proven by experiments. Similarity in high-pressure behavior between hydrogen and halogens is well-established, therefore, halogens are important subject for investigations. The typical sequence of phase transitions goes from ambient molecular solid with Cmca structure to incommensurate phase and then dissociating to monatomic phase II with bco structure with further transformation to bct, fcc and fco structures. However, due to lack of experimental data there are discrepancies and contradictions in its explanation. I study the phase transitions in halogens happening under high pressure and high temperature in double-sided laser-heated DACs using synchrotron powder and single-crystal diffraction as well as Raman spectroscopy.

Irina Chuvashova arrived from LSPM-CNRS Universite Paris Nord.  She worked with Alex Goncharov on high-pressure investigations of transport and elastic properties of the Earth's minerals.  With a background in inorganic chemistry, she is an experimental material scientist with strong interests in using different synthetic methods and analytical techniques to create new functional materials.

Postdoc Spotlight: Irina Chuvashova Finds New Ways to Measure Materials Under Pressure >>