In:
Nature, Springer Science and Business Media LLC, Vol. 605, No. 7909 ( 2022-05-12), p. 274-278
Kurzfassung:
Theoretical modelling predicts very unusual structures and properties of materials at extreme pressure and temperature conditions 1,2 . 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 cell 3 , producing a rhenium–nitrogen alloy and achieving the synthesis of rhenium nitride Re 7 N 3 —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.
Materialart:
Online-Ressource
ISSN:
0028-0836
,
1476-4687
DOI:
10.1038/s41586-022-04550-2
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2022
ZDB Id:
120714-3
ZDB Id:
1413423-8
SSG:
11
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