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Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure. / Ignatov, Mark A.; Rashchenko, Sergey V.; Bogdanov, Nikita E. et al.

In: High Pressure Research, 2025.

Research output: Contribution to journal › Article › peer-review

Harvard

Ignatov, MA, Rashchenko, SV, Bogdanov, NE, Romanenko, AV, Sokol, EV & Kokh, SN 2025, 'Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure', High Pressure Research. https://doi.org/10.1080/08957959.2025.2545257

APA

Ignatov, M. A., Rashchenko, S. V., Bogdanov, N. E., Romanenko, A. V., Sokol, E. V., & Kokh, S. N. (2025). Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure. High Pressure Research. https://doi.org/10.1080/08957959.2025.2545257

Vancouver

Ignatov MA, Rashchenko SV, Bogdanov NE, Romanenko AV, Sokol EV, Kokh SN. Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure. High Pressure Research. 2025. doi: 10.1080/08957959.2025.2545257

Author

Ignatov, Mark A. ; Rashchenko, Sergey V. ; Bogdanov, Nikita E. et al. / Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure. In: High Pressure Research. 2025.

BibTeX

@article{43544fcca71f414293ec79ab3f255ad7,
title = "Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure",
abstract = "The influence of pressure on the incommensurately modulated structures has been poorly studied to date, particularly on the structures modulated at ambient conditions. Among them is the structure of natural flamite with the general formula (Ca,K,Na)2(Si,P)O4. The behavior of the incommensurately modulated structure of flamite was studied by single-crystal X-ray diffraction in a diamond-anvil cell up to 5 GPa. The modulation vector of flamite remains constant in the investigated pressure range. In the range up to 2–3 GPa, the atomic modulation parameters in the flamite structure are not sensitive to applied pressure, but at higher pressures, amplitudes of the atomic modulation functions increase. The PV-curve of flamite was fitted with the second-order Birch–Murnaghan equation of state: V0 = 350.8(7) {\AA}3, K0 = 85(9) GPa.",
keywords = "X-ray diffraction, flamite, high pressure, incommensurate modulation, lock-in transition",
author = "Ignatov, {Mark A.} and Rashchenko, {Sergey V.} and Bogdanov, {Nikita E.} and Romanenko, {Alexandr V.} and Sokol, {Ella V.} and Kokh, {Svetlana N.}",
note = "This work was supported by the Russian Science Foundation [grant number 23-77-10047]. ",
year = "2025",
doi = "10.1080/08957959.2025.2545257",
language = "русский",
journal = "High Pressure Research",
issn = "0895-7959",
publisher = "Taylor and Francis Ltd.",

}

RIS

TY - JOUR

T1 - Single-crystal X-ray diffraction study of the incommensurately modulated structure of flamite under high pressure

AU - Ignatov, Mark A.

AU - Rashchenko, Sergey V.

AU - Bogdanov, Nikita E.

AU - Romanenko, Alexandr V.

AU - Sokol, Ella V.

AU - Kokh, Svetlana N.

N1 - This work was supported by the Russian Science Foundation [grant number 23-77-10047].

PY - 2025

Y1 - 2025

N2 - The influence of pressure on the incommensurately modulated structures has been poorly studied to date, particularly on the structures modulated at ambient conditions. Among them is the structure of natural flamite with the general formula (Ca,K,Na)2(Si,P)O4. The behavior of the incommensurately modulated structure of flamite was studied by single-crystal X-ray diffraction in a diamond-anvil cell up to 5 GPa. The modulation vector of flamite remains constant in the investigated pressure range. In the range up to 2–3 GPa, the atomic modulation parameters in the flamite structure are not sensitive to applied pressure, but at higher pressures, amplitudes of the atomic modulation functions increase. The PV-curve of flamite was fitted with the second-order Birch–Murnaghan equation of state: V0 = 350.8(7) Å3, K0 = 85(9) GPa.

AB - The influence of pressure on the incommensurately modulated structures has been poorly studied to date, particularly on the structures modulated at ambient conditions. Among them is the structure of natural flamite with the general formula (Ca,K,Na)2(Si,P)O4. The behavior of the incommensurately modulated structure of flamite was studied by single-crystal X-ray diffraction in a diamond-anvil cell up to 5 GPa. The modulation vector of flamite remains constant in the investigated pressure range. In the range up to 2–3 GPa, the atomic modulation parameters in the flamite structure are not sensitive to applied pressure, but at higher pressures, amplitudes of the atomic modulation functions increase. The PV-curve of flamite was fitted with the second-order Birch–Murnaghan equation of state: V0 = 350.8(7) Å3, K0 = 85(9) GPa.

KW - X-ray diffraction

KW - flamite

KW - high pressure

KW - incommensurate modulation

KW - lock-in transition

UR - https://www.mendeley.com/catalogue/000c640d-5778-3947-b105-d557dffdf880/

U2 - 10.1080/08957959.2025.2545257

DO - 10.1080/08957959.2025.2545257

M3 - статья

JO - High Pressure Research

JF - High Pressure Research

SN - 0895-7959

ER -

ID: 68828725