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Materials synthesis at terapascal static pressures

Title data

Dubrovinsky, Leonid ; Khandarkhaeva, Saiana ; Fedotenko, Timofey ; Laniel, Dominique ; Bykov, Maxim ; Giacobbe, Carlotta ; Lawrence Bright, Eleanor ; Sedmak, Pavel ; Chariton, Stella ; Prakapenka, Vitali ; Ponomareva, Alena V. ; Smirnova, Ekaterina A. ; Belov, Maxim P. ; Tasnádi, Ferenc ; Shulumba, Nina ; Trybel, Florian ; Abrikosov, Igor A. ; Dubrovinskaia, Natalia:
Materials synthesis at terapascal static pressures.
In: Nature. Vol. 605 (1 May 2022) Issue 7909 . - pp. 274-278.
ISSN 1476-4687
DOI: https://doi.org/10.1038/s41586-022-04550-2

Official URL: Volltext

Abstract in another language

Theoretical modelling predicts very unusual structures and properties of materials at extreme pressure and temperature conditions. Hitherto, their synthesis and investigation above 200 gigapascals have been hindered both by the technical complexity of ultrahigh-pressure experiments and by the absence of relevant in situ methods of materials analysis. Here we report on a methodology developed to enable experiments at static compression in the terapascal regime with laser heating. We apply this method to realize pressures of about 600 and 900 gigapascals in a laser-heated double-stage diamond anvil cell, producing a rhenium–nitrogen alloy and achieving the synthesis of rhenium nitride Re₇N₃—which, as our theoretical analysis shows, is only stable under extreme compression. Full chemical and structural characterization of the materials, realized using synchrotron single-crystal X-ray diffraction on microcrystals in situ, demonstrates the capabilities of the methodology to extend high-pressure crystallography to the terapascal regime.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 23 May 2022 07:32
Last Modified: 21 Sep 2022 07:35
URI: https://eref.uni-bayreuth.de/id/eprint/69677