Structural Investigation of Antisite-Disordered FeGa3 under High-Pressure

Aryella F. Rabello; Cauê K. Ribeiro; Valentina Martelli; Nenad Velisavljevic; Dmitry Popov; Yuming Xiao; Giovanni Hearne; J. Larrea Jiménez

doi:10.1063/12.0032450

Structural Investigation of Antisite-Disordered FeGa₃ under High-Pressure

Aryella F. Rabello, Cauê K. Ribeiro, Valentina Martelli, Nenad Velisavljevic, Dmitry Popov, Yuming Xiao, Giovanni Hearne, J. Larrea Jiménez

Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

We investigate the crystal structure stability of the cage compound FeGa₃ in the presence of Fe antisite disorder (namely as Fe_0.258Ga_0.742) using room-temperature x-ray diffraction (XRD) as a function of pressure up to 38 GPa. Our results show a crystal structure instability, with the emergence of a second crystallographic phase of different symmetry at a critical pressure in the range of P_c ≈ 16 - 18 GPa, similar to what was previously reported for pristine FeGa₃. Our results are a ®rst step in understanding the effect of pressure in the crystal structure of FeGa₃ in the presence of disorder.

Original language	English
Article number	460001
Journal	AIP Conference Proceedings
Volume	3066
Issue number	1
DOIs	https://doi.org/10.1063/12.0032450
Publication status	Published - 9 Dec 2024
Event	23rd Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2023 - Hybrid, Chicago, United States Duration: 19 Jun 2023 → 23 Jun 2023

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/12.0032450

Cite this

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title = "Structural Investigation of Antisite-Disordered FeGa3 under High-Pressure",

abstract = "We investigate the crystal structure stability of the cage compound FeGa3 in the presence of Fe antisite disorder (namely as Fe0.258Ga0.742) using room-temperature x-ray diffraction (XRD) as a function of pressure up to 38 GPa. Our results show a crystal structure instability, with the emergence of a second crystallographic phase of different symmetry at a critical pressure in the range of Pc ≈ 16 - 18 GPa, similar to what was previously reported for pristine FeGa3. Our results are a {\textregistered}rst step in understanding the effect of pressure in the crystal structure of FeGa3 in the presence of disorder.",

author = "Rabello, \{Aryella F.\} and Ribeiro, \{Cau{\^e} K.\} and Valentina Martelli and Nenad Velisavljevic and Dmitry Popov and Yuming Xiao and Giovanni Hearne and Jim{\'e}nez, \{J. Larrea\}",

note = "Publisher Copyright: {\textcopyright} 2024 American Institute of Physics Inc.. All rights reserved.; 23rd Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2023 ; Conference date: 19-06-2023 Through 23-06-2023",

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T1 - Structural Investigation of Antisite-Disordered FeGa3 under High-Pressure

AU - Rabello, Aryella F.

AU - Ribeiro, Cauê K.

AU - Martelli, Valentina

AU - Velisavljevic, Nenad

AU - Popov, Dmitry

AU - Xiao, Yuming

AU - Hearne, Giovanni

AU - Jiménez, J. Larrea

PY - 2024/12/9

Y1 - 2024/12/9

N2 - We investigate the crystal structure stability of the cage compound FeGa3 in the presence of Fe antisite disorder (namely as Fe0.258Ga0.742) using room-temperature x-ray diffraction (XRD) as a function of pressure up to 38 GPa. Our results show a crystal structure instability, with the emergence of a second crystallographic phase of different symmetry at a critical pressure in the range of Pc ≈ 16 - 18 GPa, similar to what was previously reported for pristine FeGa3. Our results are a ®rst step in understanding the effect of pressure in the crystal structure of FeGa3 in the presence of disorder.

AB - We investigate the crystal structure stability of the cage compound FeGa3 in the presence of Fe antisite disorder (namely as Fe0.258Ga0.742) using room-temperature x-ray diffraction (XRD) as a function of pressure up to 38 GPa. Our results show a crystal structure instability, with the emergence of a second crystallographic phase of different symmetry at a critical pressure in the range of Pc ≈ 16 - 18 GPa, similar to what was previously reported for pristine FeGa3. Our results are a ®rst step in understanding the effect of pressure in the crystal structure of FeGa3 in the presence of disorder.

UR - https://www.scopus.com/pages/publications/85213384504

U2 - 10.1063/12.0032450

DO - 10.1063/12.0032450

M3 - Conference article

AN - SCOPUS:85213384504

SN - 0094-243X

VL - 3066

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

IS - 1

M1 - 460001

T2 - 23rd Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2023

Y2 - 19 June 2023 through 23 June 2023

ER -

Structural Investigation of Antisite-Disordered FeGa₃ under High-Pressure

Abstract

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