Pressure-Induced Structural Phase Transition in EuNi2P2
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Open Access
- 23 April 2022
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Omega
- Vol. 7 (17) , 15200-15205
Abstract
EuNi2P2 was studied with a diamond anvil cell (DAC) and X-ray diffraction (XRD). The structural evolution of powder crystal EuNi2P2 under high pressure up to 137 GPa and its single-crystal structure up to 9 GPa were reported. The unique structural phase transition of this 122-type crystal occurred above 70 GPa in powder crystal EuNi2P2. The diffraction data from single-crystal EuNi2P2 revealed the coordinate change of the P atom, and the stability of the crystal at 9 GPa was confirmed. The crystal EuNi2P2 remained stable with a tetragonal phase without obvious symmetry changes during compression to 137 GPa.Keywords
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