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Nitride Spinel : An Ultraincompressible High-Pressure Form of BeP₂N₄

Title data

Vogel, Sebastian ; Bykov, Maxim ; Bykova, Elena ; Wendl, Sebastian ; Kloß, Simon D. ; Pakhomova, Anna S. ; Dubrovinskaia, Natalia ; Dubrovinsky, Leonid ; Schnick, Wolfgang:
Nitride Spinel : An Ultraincompressible High-Pressure Form of BeP₂N₄.
In: Angewandte Chemie International Edition. Vol. 59 (2020) Issue 7 . - pp. 2730-2734.
ISSN 1521-3773
DOI: https://doi.org/10.1002/anie.201910998

Abstract in another language

Owing to its outstanding elastic properties, the nitride spinel γ-Si3N4 is of considered interest for materials scientists and chemists. DFT calculations suggest that Si3N4-analog beryllium phosphorus nitride BeP2N4 adopts the spinel structure at elevated pressures as well and shows outstanding elastic properties. Herein, we investigate phenakite-type BeP2N4 by single-crystal synchrotron X-ray diffraction and report the phase transition into the spinel-type phase at 47 GPa and 1800 K in a laser-heated diamond anvil cell. The structure of spinel-type BeP2N4 was refined from pressure-dependent in situ synchrotron powder X-ray diffraction measurements down to ambient pressure, which proves spinel-type BeP2N4 a quenchable and metastable phase at ambient conditions. Its isothermal bulk modulus was determined to 325(8) GPa from equation of state, which indicates that spinel-type BeP2N4 is an ultraincompressible material.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: high-pressure chemistry; nitrides; solid-state structures; spinel; synchrotron radiation
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
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
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > High Pressure and High Temperature Research
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bavarian Research Institute of Experimental Geochemistry and Geophysics - BGI
Result of work at the UBT: Yes
DDC Subjects: 300 Social sciences > 320 Political science
300 Social sciences > 330 Economics
500 Science > 530 Physics
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 02 Dec 2019 12:10
Last Modified: 12 Apr 2021 11:45
URI: https://eref.uni-bayreuth.de/id/eprint/53377