Pressure dependent structural phase transition in iron silicide

Malviya, Sheetal; Kinge, R.; Kaurav, Netram; Dixit, R. C.

doi:10.1063/5.0061310

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…We neither find evidence of structural phase transformation to the hcp-structure reported by Fischer, nor other possible Fe-Si structures [50][51][52] . This includes measurements made during the initial shock over a range of pressures (⇠10-110 GPa) and after releasing into the sapphire window.…”

Section: Discussioncontrasting

confidence: 52%

X-ray diffraction study of phase transformation dynamics of Fe and Fe-Si alloys along the shock Hugoniot using an x-ray free electron laser

Krygier

Harmand²,

Albertazzi³

et al. 2022

Phys. Rev. B

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Section: Discussioncontrasting

confidence: 52%

X-ray diffraction study of phase transformation dynamics of Fe and Fe-Si alloys along the shock Hugoniot using an x-ray free electron laser

Krygier

Harmand²,

Albertazzi³

et al. 2022

Phys. Rev. B

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“…In response to the thermodynamical variables, transition metal monosilicides have been subjected to significant research for the purpose of determining their unique thermoelectric capabilities, superconductivity, structural phase transitions as well as their resistance to oxidation [1][2][3][4][5][6][7][8][9][10]. In particular, researchers have done in-depth investigations on the high-pressure transformations of transition metal monosilicides.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Investigation of Pressure Dependent Structural and Elastic Properties of MnSi Compound

Malviya,

Jain,

Dixit

et al. 2023

J. Phys.: Conf. Ser.

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MnSi is a metallic compound that exhibits a structural phase transition as a function of pressure. At ambient conditions, MnSi has a cubic structure such as NaCl type crystal structure. However, at high pressures, it undergoes a structural phase transition to a CsCl type crystal structure. The pressure-dependent structural phase transition in MnSi has been studied using various experimental and theoretical techniques. In the present work, we have used an efficient inter-ionic potential approach to predict pressure dependent structural phase change and associated volume collapse in MnSi. Therein, the potential includes the long-range Coulomb, van der Waals (vdW) interaction, and the short-range repulsive interaction up to second neighbour ions. It has been demonstrated that the Hafemeister and Flygare approach successfully evaluates the equation of state for change in volume with respect to applied pressure. We have identified a structural phase transition from B1(NaCl) type structure to B2 (CsCl) type structure in this compound. The estimated value of phase transition pressure (Pt) is 42 GPa, which is consistent with the available reported data. The identified first order phase transformation showed a volume collapse of about 10% in the vicinity of transition. In addition, we have also investigated second order of elastic constants for MnSi compound.

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Pressure dependent structural phase transition in iron silicide

Cited by 2 publications

References 11 publications

X-ray diffraction study of phase transformation dynamics of Fe and Fe-Si alloys along the shock Hugoniot using an x-ray free electron laser

X-ray diffraction study of phase transformation dynamics of Fe and Fe-Si alloys along the shock Hugoniot using an x-ray free electron laser

Theoretical Investigation of Pressure Dependent Structural and Elastic Properties of MnSi Compound

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