Materials synthesis at terapascal static pressures

Leonid Dubrovinsky (), Saiana Khandarkhaeva, Timofey Fedotenko, Dominique Laniel, Maxim Bykov, Carlotta Giacobbe, Eleanor Lawrence Bright, Pavel Sedmak, Stella Chariton, Vitali Prakapenka, Alena V. Ponomareva, Ekaterina A. Smirnova, Maxim P. Belov, Ferenc Tasnádi, Nina Shulumba, Florian Trybel, Igor A. Abrikosov () and Natalia Dubrovinskaia
Additional contact information
Leonid Dubrovinsky: University of Bayreuth
Saiana Khandarkhaeva: University of Bayreuth
Timofey Fedotenko: Deutsches Elektronen-Synchrotron (DESY)
Dominique Laniel: Laboratory of Crystallography University of Bayreuth
Maxim Bykov: University of Cologne
Carlotta Giacobbe: European Synchrotron Radiation Facility
Eleanor Lawrence Bright: European Synchrotron Radiation Facility
Pavel Sedmak: European Synchrotron Radiation Facility
Stella Chariton: The University of Chicago
Vitali Prakapenka: The University of Chicago
Alena V. Ponomareva: National University of Science and Technology “MISIS”
Ekaterina A. Smirnova: National University of Science and Technology “MISIS”
Maxim P. Belov: National University of Science and Technology “MISIS”
Ferenc Tasnádi: Linköping University
Nina Shulumba: Linköping University
Florian Trybel: Linköping University
Igor A. Abrikosov: Linköping University
Natalia Dubrovinskaia: Laboratory of Crystallography University of Bayreuth

Nature, 2022, vol. 605, issue 7909, 274-278

Abstract: Abstract Theoretical modelling predicts very unusual structures and properties of materials at extreme pressure and temperature conditions1,2. 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 cell3, 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.

Date: 2022
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DOI: 10.1038/s41586-022-04550-2

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