DataVXPhysical Review BPaper
journal article·2023-07-24Open access

Structural evolution of iodine on approach to the monatomic state

Elena Bykova, Iskander G. Batyrev, Maxim Bykov, Eric Edmund, Stella Chariton, Vitali B. Prakapenka, Alexander F. Goncharov

Physical Review B· Volume 108· Issue 2
Publisher pageOpen full text
Source abstract

Abstract

We applied single-crystal x-ray diffraction and Raman spectroscopy in a diamond-anvil cell up to 36 GPa and first-principles theoretical calculations to study the molecular dissociation of solid iodine at high pressure. Unlike previously reported, we find that the familiar $Cmce$ molecular phase transforms to a $Cmc{2}1$ molecular structure at 16 GPa, and then to an incommensurate polymeric $Fmmm(00\ensuremath{\gamma})s00$ structure, which can be viewed as a mixture of molecular ${\mathrm{I}}2$ and zigzag chains of three iodine atoms, at 20 GPa. The available data are consistent with metallization of iodine at the boundary between the commensurate $Cmc{2}1$ structure and the incommensurate $Fmmm(00\ensuremath{\gamma})s00$ structure at 20 GPa.
Source: openalex_inverted_index · Quality: baseline

Research context

Polymers

OpenAlex topics: High-pressure geophysics and materials · Advanced Condensed Matter Physics · Physics of Superconductivity and Magnetism

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA

Bayerisches Geoinstitut, University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany

U.S. Army Research Laboratory, RDRLWML-B, Aberdeen Proving Ground, Maryland 21005, USA

Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany

Center for Advanced Radiation Sources, The University of Chicago, Chicago, Illinois 60637, USA

Funding

National Science Foundation · U.S. Department of Energy · Office of Science · Army Research Office · Deutsche Forschungsgemeinschaft · Alexander von Humboldt-Stiftung

References (31)

Show source-provided references
1. 10.1063/10.000052610.1063/10.0000526 ↗
2. 10.1063/5.000210410.1063/5.0002104 ↗
3. 10.1016/0022-3697(95)00081-X10.1016/0022-3697(95)00081-X ↗
4. 10.1039/D0CP05942K10.1039/D0CP05942K ↗
5. 10.1103/PhysRevLett.94.06550610.1103/PhysRevLett.94.065506 ↗
6. 10.1038/s41467-019-09108-x10.1038/s41467-019-09108-x ↗
7. 10.1063/1.172765210.1063/1.1727652 ↗
8. 10.1103/PhysRevLett.45.188110.1103/PhysRevLett.45.1881 ↗
9. 10.1103/PhysRevB.26.99810.1103/PhysRevB.26.998 ↗
10. 10.1080/08957959.2012.75552410.1080/08957959.2012.755524 ↗
11. 10.1063/1.173179810.1063/1.1731798 ↗
12. 10.1143/JPSJ.51.181110.1143/JPSJ.51.1811 ↗
13. 10.1038/nature0172410.1038/nature01724 ↗
14. 10.1139/v88-14110.1139/v88-141 ↗
15. 10.1103/PhysRevB.50.71210.1103/PhysRevB.50.712 ↗
16. 10.1103/PhysRevLett.58.57510.1103/PhysRevLett.58.575 ↗
17. 10.1073/pnas.080128010510.1073/pnas.0801280105 ↗
18. 10.1103/PhysRevResearch.3.03317410.1103/PhysRevResearch.3.033174 ↗
19. 10.1080/08957959.2019.164753610.1080/08957959.2019.1647536 ↗
20. 10.1073/pnas.060901310410.1073/pnas.0609013104 ↗
21. 10.1107/S205327331402637010.1107/S2053273314026370 ↗
22. 10.1107/S002188980804272610.1107/S0021889808042726 ↗
23. 10.1103/PhysRevLett.43.149410.1103/PhysRevLett.43.1494 ↗
24. 10.1103/PhysRevB.13.518810.1103/PhysRevB.13.5188 ↗
25. 10.1103/PhysRevB.73.15511410.1103/PhysRevB.73.155114 ↗
26. 10.1103/PhysRevB.54.783010.1103/PhysRevB.54.7830 ↗
27. 10.1002/cphc.20140289010.1002/cphc.201402890 ↗
28. 10.1063/1.237099310.1063/1.2370993 ↗
29. 10.1063/1.224456010.1063/1.2244560 ↗
30. 10.1524/zkri.219.11.749.5243410.1524/zkri.219.11.749.52434 ↗
31. 10.1103/PhysRevLett.80.191210.1103/PhysRevLett.80.1912 ↗