High Pressure–Temperature Study of MgF2, CaF2, and BaF2 by Raman Spectroscopy: Phase Transitions and Vibrational Properties of AF2 Difluorides

Zhang, Xinyue; Li, Luo; Yu, Yingxin; Zhang, Qingchun; Sun, Ningyu; Mao, Zhu; Zhang, Dongzhou

doi:10.1021/acsomega.4c01347

Title: High Pressure–Temperature Study of MgF₂, CaF₂, and BaF₂ by Raman Spectroscopy: Phase Transitions and Vibrational Properties of AF₂ Difluorides

Journal Article · 22 May 2024 · ACS Omega

DOI: https://doi.org/10.1021/acsomega.4c01347 · OSTI ID:2472236

Zhang, Xinyue ^[1]; Li, Luo ^[2]; Yu, Yingxin ^[2]; Zhang, Qingchun ^[2];

^[2]; Mao, Zhu ^[2]; Zhang, Dongzhou ^[3]

Univ. of Science and Technology of China, Hefei (China); Univ. of Science and Technology, Heifei (China)
Univ. of Science and Technology of China, Hefei (China)
Univ. of Chicago, IL (United States)

The phase transition of AF₂ difluorides strongly depends on pressure, temperature, and cationic radius. Here, we have investigated the phase transition of three difluorides, including MgF₂, CaF₂, and BaF₂, at simultaneously high pressures and temperatures using Raman spectroscopy and X-ray diffraction in externally heated diamond anvil cells up to 55 GPa at 300–700 K. Rutile-type difluoride MgF₂ with a small cationic radius undergoes a transition to the CaCl₂-type phase at 9.9(1) GPa and 300 K, to the HP-PdF₂-type phase at 21.0(2) GPa, and to the cotunnite-type phase at 44.2(2) GPa. The phase transition pressure to the HP-PdF₂ and cotunnite structure at 300 K for our single crystal was found to be higher than that in previous studies using polycrystalline samples. Elevating the temperature increases the transition pressure from rutile- to the CaCl₂-type phase but has a negative influence on the transition pressure when MgF₂ transforms from the HP-PdF₂- to cotunnite-type phase. Meanwhile, the transition pressure from the CaCl₂- to HP-PdF₂-type phase for MgF₂ was identified to be independent of the temperature. Raman peaks suspected to belong to the α-PbO₂-type phase were observed at 14.6–21.0(1) GPa and 400–700 K. At 300 K, difluorides CaF₂ and BaF₂ in the fluorite structure with larger cationic radii transform to the cotunnite-type phase at 9.6(3) and 3.0(3) GPa at 300 K, respectively, and BaF₂ further undergoes a transition to the Ni₂In-type phase at 15.5(4) GPa. For both CaF₂ and BaF₂, elevating the temperature leads to a lower transition pressure from fluorite- to the cotunnite-type phase but has little influence on the transition to the Ni₂In structure. Raman data provide valuable insights for mode Grüneisen parameters. We note that the mode Grüneisen parameters for both difluorides and dioxides vary linearly with the cation radius. Further calculations for the mode Grüneisen parameters at high pressures for MgF₂, CaF₂, and BaF₂ yield a deeper understanding of the thermodynamic properties of the difluorides.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States)

Sponsoring Organization:: Chinese Academy of Sciences (CAS); Fundamental Research Funds for the Central Universities; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC)

Grant/Contract Number:: AC02-06CH11357; FG02-94ER14466

OSTI ID:: 2472236

Journal Information:: ACS Omega, Journal Name: ACS Omega Journal Issue: 22 Vol. 9; ISSN 2470-1343

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

References (78)

Pressure‐induced phase transitions and anharmonicity study of alkaline‐earth fluorides Kourouklis, G. A.; Anastassakis, E. physica status solidi (b), Vol. 152, Issue 1 https://doi.org/10.1002/pssb.2221520110	journal	March 1989
Single-crystal elastic constants of fluorite (CaF 2 ) to 9.3 GPa Speziale, S.; Duffy, T. S. Physics and Chemistry of Minerals, Vol. 29, Issue 7 https://doi.org/10.1007/s00269-002-0250-x	journal	August 2002
Low-pressure ferroelastic phase transition in rutile-type AX2 minerals: cassiterite (SnO2), pyrolusite (MnO2) and sellaite (MgF2) Curetti, Nadia; Merli, Marcello; Capella, Silvana Physics and Chemistry of Minerals, Vol. 46, Issue 10 https://doi.org/10.1007/s00269-019-01057-7	journal	October 2019
Structural evolution of rutile-type and CaCl 2 -type germanium dioxide at high pressure Haines, J.; L�ger, J. M.; Chateau, C. Physics and Chemistry of Minerals, Vol. 27, Issue 8 https://doi.org/10.1007/s002690000092	journal	September 2000
The phase relations of calcium fluoride (fluorite) to 60 kbars and 1800°C Mirwald, Peter W.; Kennedy, George C. Journal of Physics and Chemistry of Solids, Vol. 39, Issue 8 https://doi.org/10.1016/0022-3697(78)90145-2	journal	January 1978
Phase relations for SrF2 TO 50 Kbars and 1900°C and its compression to 40Kbars at 25°C Mirwald, Peter W.; Kennedy, George C. Journal of Physics and Chemistry of Solids, Vol. 41, Issue 10 https://doi.org/10.1016/0022-3697(80)90073-6	journal	January 1980
Raman spectroscopic study of the pressure-induced phase transition in TiO2 Arashi, H. Journal of Physics and Chemistry of Solids, Vol. 53, Issue 3 https://doi.org/10.1016/0022-3697(92)90168-D	journal	March 1992
On a new structural type of fluorine compounds : Crystal and magnetic structures of a high pressure form of PdF2 Tressaud, A.; Soubeyroux, J. L.; Touhara, H. Materials Research Bulletin, Vol. 16, Issue 2 https://doi.org/10.1016/0025-5408(81)90083-0	journal	February 1981
Elastic and thermal properties of fluoride and oxide analogues in the rocksalt, fluorite, rutile and perovskite structures Jones, Leonie E. A.; Liebermann, Robert C. Physics of the Earth and Planetary Interiors, Vol. 9, Issue 2 https://doi.org/10.1016/0031-9201(74)90026-0	journal	January 1974
Raman study of single crystal anatase TiO2 up to 70 GPa Lagarec, Ken; Desgreniers, Serge Solid State Communications, Vol. 94, Issue 7 https://doi.org/10.1016/0038-1098(95)00129-8	journal	May 1995
Mineralogy of Super-Earth Planets Duffy, T.; Madhusudhan, N.; Lee, K. K. M. Treatise on Geophysics https://doi.org/10.1016/B978-0-444-53802-4.00053-1	book	April 2015
Post-stishovite phase boundary in SiO2 determined by in situ X-ray observations Ono, Shigeaki; Hirose, Kei; Murakami, Motohiko Earth and Planetary Science Letters, Vol. 197, Issue 3-4 https://doi.org/10.1016/S0012-821X(02)00479-X	journal	April 2002
High-pressure structural phase transitions in magnesium fluoride studied by electronic structure calculations Kanchana, V.; Vaitheeswaran, G.; Rajagopalan, M. Journal of Alloys and Compounds, Vol. 352, Issue 1-2 https://doi.org/10.1016/S0925-8388(02)01158-1	journal	March 2003
High pressure behavior of mercury difluoride (HgF2) Schyck, Sarah; Evlyukhin, Egor; Kim, Eunja Chemical Physics Letters, Vol. 724 https://doi.org/10.1016/j.cplett.2019.03.045	journal	June 2019
High-pressure structural phase transitions and intermediate phases of magnesium fluoride Öztürk, Hülya; Kürkçü, Cemile; Kürkçü, Cihan Journal of Alloys and Compounds, Vol. 597 https://doi.org/10.1016/j.jallcom.2014.01.221	journal	June 2014
Structural phase transformations and new intermediate phases of MgF2 under high-pressures applied via conjugate-gradient method Öztürk, Hülya; Kürkçü, Cemile; Kürkçü, Cihan Journal of Alloys and Compounds, Vol. 609 https://doi.org/10.1016/j.jallcom.2014.04.152	journal	October 2014
Single-crystal elastic constants of magnesium difluoride (MgF2) to 7.4GPa Zouboulis, Ilias S.; Jiang, Fuming; Wang, Jue Journal of Physics and Chemistry of Solids, Vol. 75, Issue 1 https://doi.org/10.1016/j.jpcs.2013.09.014	journal	January 2014
Equation of state and post-stishovite transformation of Al-bearing silica up to 100GPa and 3000K Bolfan-Casanova, N.; Andrault, D.; Amiguet, E. Physics of the Earth and Planetary Interiors, Vol. 174, Issue 1-4 https://doi.org/10.1016/j.pepi.2008.06.024	journal	May 2009
First-principles study of the pressure-induced rutile–CaCl2 phase transition in MgF2 Zhang, Lijun; Wang, Yanchao; Cui, Tian Solid State Communications, Vol. 145, Issue 5-6 https://doi.org/10.1016/j.ssc.2007.11.007	journal	February 2008
In situ X-ray observation of phase transitions in under high pressure and high temperature Kusaba, Keiji; Kikegawa, Takumi Solid State Communications, Vol. 145, Issue 5-6 https://doi.org/10.1016/j.ssc.2007.11.009	journal	February 2008
Stable phase with the type structure in under high pressure and high temperature Kusaba, Keiji; Kikegawa, Takumi Solid State Communications, Vol. 148, Issue 9-10 https://doi.org/10.1016/j.ssc.2008.09.017	journal	December 2008
Phase transition of cadmium fluoride under high pressure Liu, Guangtao; Wang, Hui; Ma, Yanmei Solid State Communications, Vol. 151, Issue 24 https://doi.org/10.1016/j.ssc.2011.09.027	journal	December 2011
High-Pressure Phase Transitions of Zinc Difluoride up to 55 GPa Kurzydłowski, Dominik; Oleksiak, Anna; Pillai, Sharad Babu Inorganic Chemistry, Vol. 59, Issue 4 https://doi.org/10.1021/acs.inorgchem.9b03553	journal	January 2020
High-Pressure Phase Diagram and Superionicity of Alkaline Earth Metal Difluorides Cazorla, Claudio; Sagotra, Arun K.; King, Meredith The Journal of Physical Chemistry C, Vol. 122, Issue 2 https://doi.org/10.1021/acs.jpcc.7b10975	journal	January 2018
Pressure-Induced Phase Transitions in TiO₂ Rutile Nanorods Machon, Denis; Le Bail, Nicolas; Hermet, Patrick The Journal of Physical Chemistry C, Vol. 123, Issue 3 https://doi.org/10.1021/acs.jpcc.8b10057	journal	December 2018
The Sizes of ions and the Structure of Ionic Crystals Pauling, Linus Journal of the American Chemical Society, Vol. 49, Issue 3 https://doi.org/10.1021/ja01402a019	journal	March 1927
High-pressure elasticity of stishovite and the P 4 ₂ / mnm ⇌ Pnnm phase transition Carpenter, Michael A.; Hemley, Russell J.; Mao, Ho-kwang Journal of Geophysical Research: Solid Earth, Vol. 105, Issue B5 https://doi.org/10.1029/1999JB900419	journal	May 2000
Stability of CaCl ₂ -type and α-PbO ₂ -type SiO ₂ at high pressure and temperature determined by in-situ X-ray measurements : STABILITY OF CaCl Murakami, Motohiko; Hirose, Kei; Ono, Shigeaki Geophysical Research Letters, Vol. 30, Issue 5 https://doi.org/10.1029/2002GL016722	journal	March 2003
Equation of State of Polycrystalline Stishovite Across the Tetragonal-Orthorhombic Phase Transition Buchen, Johannes; Marquardt, Hauke; Schulze, Kirsten Journal of Geophysical Research: Solid Earth, Vol. 123, Issue 9 https://doi.org/10.1029/2018JB015835	journal	September 2018
Strong Effect of Stress on the Seismic Signature of the Post‐Stishovite Phase Transition in the Earth's Lower Mantle Wang, Biao; Buchen, Johannes; Méndez, Alba San José Geophysical Research Letters, Vol. 50, Issue 10 https://doi.org/10.1029/2023gl102740	journal	May 2023
High pressure phase transformations in MgF₂ (rutile) Ming, Li‐chung; Manghnana, Murli H. Geophysical Research Letters, Vol. 6, Issue 1 https://doi.org/10.1029/GL006i001p00013	journal	January 1979
Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions Mao, H. K.; Xu, J.; Bell, P. M. Journal of Geophysical Research, Vol. 91, Issue B5, p. 4673-4676 https://doi.org/10.1029/JB091iB05p04673	journal	January 1986
Transformation of stishovite to a denser phase at lower-mantle pressures Kingma, Kathleen J.; Cohen, Ronald E.; Hemley, Russell J. Nature, Vol. 374, Issue 6519 https://doi.org/10.1038/374243a0	journal	March 1995
First-principles study of pressure-induced structural phase transitions in MnF ₂ López-Moreno, S.; Romero, A. H.; Mejía-López, J. Physical Chemistry Chemical Physics, Vol. 18, Issue 48 https://doi.org/10.1039/C6CP05467F	journal	January 2016
BX90: A new diamond anvil cell design for X-ray diffraction and optical measurements Kantor, I.; Prakapenka, V.; Kantor, A. Review of Scientific Instruments, Vol. 83, Issue 12, Article No. 125102 https://doi.org/10.1063/1.4768541	journal	December 2012
Toward an internally consistent pressure scale Fei, Y.; Ricolleau, A.; Frank, M. Proceedings of the National Academy of Sciences, Vol. 104, Issue 22 https://doi.org/10.1073/pnas.0609013104	journal	May 2007
Prediction of a hexagonal SiO2 phase affecting stabilities of MgSiO3 and CaSiO3 at multimegabar pressures Tsuchiya, T.; Tsuchiya, J. Proceedings of the National Academy of Sciences, Vol. 108, Issue 4 https://doi.org/10.1073/pnas.1013594108	journal	January 2011
Optical pressure sensors for high-pressure–high-temperature studies in a diamond anvil cell Datchi, F.; Dewaele, A.; Loubeyre, P. High Pressure Research, Vol. 27, Issue 4 https://doi.org/10.1080/08957950701659593	journal	December 2007
Hydrostatic limits of 11 pressure transmitting media Klotz, S.; Chervin, J-C.; Munsch, P. Journal of Physics D: Applied Physics, Vol. 42, Issue 7, Article No. 075413 https://doi.org/10.1088/0022-3727/42/7/075413	journal	March 2009
The high-pressure phase transition sequence from the rutile-type through to the cotunnite-type structure in Haines, J.; Léger, J. M.; Schulte, O. Journal of Physics: Condensed Matter, Vol. 8, Issue 11 https://doi.org/10.1088/0953-8984/8/11/009	journal	March 1996
Pressure-temperature phase diagram and thermoelastic behavior of manganese fluoride up to 13.1 GPa and 700 K Ye, Zhilin; Li, Bo; Chen, Wei Materials Research Express, Vol. 6, Issue 11 https://doi.org/10.1088/2053-1591/ab49f7	journal	September 2019
Stable and metastable structures of tin (IV) oxide at high pressure Sneed, Daniel T.; Smith, G. Alexander; Kearney, John S. C. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 381, Issue 2258 https://doi.org/10.1098/rsta.2022.0346	journal	August 2023
Raman Spectra of Ti O 2 , Mg F 2 , Zn F 2 , Fe F 2 , and Mn F 2 Porto, S. P. S.; Fleury, P. A.; Damen, T. C. Physical Review, Vol. 154, Issue 2 https://doi.org/10.1103/PhysRev.154.522	journal	February 1967
Pressure-Induced Phase Transitions in Solids: BaF2 Samara, G. A. Physical Review B, Vol. 2, Issue 10 https://doi.org/10.1103/PhysRevB.2.4194	journal	November 1970
Ionic conductivity, activation volumes, and high-pressure phase transitions in Pb F 2 and Sr Cl 2 Oberschmidt, J.; Lazarus, D. Physical Review B, Vol. 21, Issue 7 https://doi.org/10.1103/PhysRevB.21.2952	journal	April 1980
High-pressure x-ray- and neutron-diffraction studies of BaF 2 : An example of a coordination number of 11 in AX 2 compounds Leger, J. M.; Haines, J.; Atouf, A. Physical Review B, Vol. 52, Issue 18 https://doi.org/10.1103/PhysRevB.52.13247	journal	November 1995
X-ray diffraction study of the phase transitions and structural evolution of tin dioxide at high pressure:ffRelationships between structure types and implications for other rutile-type dioxides Haines, J.; Léger, J. M. Physical Review B, Vol. 55, Issue 17 https://doi.org/10.1103/PhysRevB.55.11144	journal	May 1997
Raman-scattering observation of the rutile-to-CaCl2phase transition in RuO2 Rosenblum, S. S.; Weber, W. H.; Chamberland, B. L. Physical Review B, Vol. 56, Issue 2 https://doi.org/10.1103/PhysRevB.56.529	journal	July 1997
Ferroelastic phase transition in rutile-type germanium dioxide at high pressure Haines, J.; Léger, J. M.; Chateau, C. Physical Review B, Vol. 58, Issue 6 https://doi.org/10.1103/PhysRevB.58.R2909	journal	August 1998
Temperature dependence of Raman scattering and anharmonicity study of MgF 2 Perakis, A.; Sarantopoulou, E.; Raptis, Y. S. Physical Review B, Vol. 59, Issue 2 https://doi.org/10.1103/PhysRevB.59.775	journal	January 1999
X-ray diffraction and theoretical studies of the high-pressure structures and phase transitions in magnesium fluoride Haines, J.; Léger, J. M.; Gorelli, F. Physical Review B, Vol. 64, Issue 13 https://doi.org/10.1103/PhysRevB.64.134110	journal	September 2001
Brillouin and Raman spectroscopy of the ferroelastic rutile-to- CaCl 2 transition in SnO 2 at high pressure Hellwig, Holger; Goncharov, Alexander F.; Gregoryanz, Eugene Physical Review B, Vol. 67, Issue 17 https://doi.org/10.1103/PhysRevB.67.174110	journal	May 2003
Structural stability of silica at high pressures and temperatures Oganov, Artem R.; Gillan, Michael J.; Price, G. David Physical Review B, Vol. 71, Issue 6 https://doi.org/10.1103/PhysRevB.71.064104	journal	February 2005
Structural transformation of compressed solid Ar: An x-ray diffraction study to 114 GPa Errandonea, D.; Boehler, R.; Japel, S. Physical Review B, Vol. 73, Issue 9 https://doi.org/10.1103/PhysRevB.73.092106	journal	March 2006
High pressure–high temperature equations of state of neon and diamond Dewaele, Agnès; Datchi, Frédéric; Loubeyre, Paul Physical Review B, Vol. 77, Issue 9, Article No. 094106 https://doi.org/10.1103/PhysRevB.77.094106	journal	March 2008
High-pressure structures and vibrational spectra of barium fluoride: Results obtained under nearly hydrostatic conditions Smith, Jesse S.; Desgreniers, Serge; Tse, John S. Physical Review B, Vol. 79, Issue 13 https://doi.org/10.1103/PhysRevB.79.134104	journal	April 2009
High-pressure phases of group-II difluorides: Polymorphism and superionicity Nelson, Joseph R.; Needs, Richard J.; Pickard, Chris J. Physical Review B, Vol. 95, Issue 5 https://doi.org/10.1103/PhysRevB.95.054118	journal	February 2017
Comment on “High-pressure phases of group-II difluorides: Polymorphism and superionicity” Cazorla, Claudio; Errandonea, Daniel Physical Review B, Vol. 98, Issue 18 https://doi.org/10.1103/PhysRevB.98.186101	journal	November 2018
Reply to “Comment on ‘High-pressure phases of group-II difluorides: Polymorphism and superionicity’ ” Nelson, Joseph R.; Needs, Richard J.; Pickard, Chris J. Physical Review B, Vol. 98, Issue 18 https://doi.org/10.1103/PhysRevB.98.186102	journal	November 2018
Superionicity and Polymorphism in Calcium Fluoride at High Pressure Cazorla, Claudio; Errandonea, Daniel Physical Review Letters, Vol. 113, Issue 23 https://doi.org/10.1103/PhysRevLett.113.235902	journal	December 2014
Elasticity of a Pseudoproper Ferroelastic Transition from Stishovite to Post-Stishovite at High Pressure Zhang, Yanyao; Fu, Suyu; Wang, Baoyun Physical Review Letters, Vol. 126, Issue 2 https://doi.org/10.1103/PhysRevLett.126.025701	journal	January 2021
Dynamic compression of [100] MgF2 single crystals: Shock-induced polymorphism to highly coordinated structures Ocampo, I. K.; Winey, J. M.; Toyoda, Y. Physical Review B, Vol. 106, Issue 14 https://doi.org/10.1103/physrevb.106.144108	journal	October 2022
α − PbO 2 -type high-pressure polymorph of GeO 2 Prakapenka, Vitali B.; Dubrovinsky, Leonid S.; Shen, Guoyin Physical Review B, Vol. 67, Issue 13 https://doi.org/10.1103/physrevb.67.132101	journal	April 2003
High-pressure Raman study of the ferroelastic rutile-to- Ca Cl 2 phase transition in Zn F 2 Perakis, Aristides; Lampakis, Dimitrios; Boulmetis, Yannis C. Physical Review B, Vol. 72, Issue 14 https://doi.org/10.1103/physrevb.72.144108	journal	October 2005
Phase transitions and equations of state of alkaline earth fluorides CaF 2 , SrF 2 , and BaF 2 to Mbar pressures Dorfman, Susannah M.; Jiang, Fuming; Mao, Zhu Physical Review B, Vol. 81, Issue 17 https://doi.org/10.1103/physrevb.81.174121	journal	May 2010
Identification of post-pyrite phase transitions in SiO 2 by a genetic algorithm Wu, Shunqing; Umemoto, Koichiro; Ji, Min Physical Review B, Vol. 83, Issue 18 https://doi.org/10.1103/physrevb.83.184102	journal	May 2011
Dielectric properties and lattice dynamics of α -PbO 2 -type TiO 2 : The role of soft phonon modes in pressure-induced phase transition to baddeleyite-type TiO 2 Cai, Yongqing; Zhang, Chun; Feng, Yuan Ping Physical Review B, Vol. 84, Issue 9 https://doi.org/10.1103/physrevb.84.094107	journal	September 2011
First-principles study of electronic, vibrational, elastic, and magnetic properties of FeF 2 as a function of pressure López-Moreno, S.; Romero, A. H.; Mejía-López, J. Physical Review B, Vol. 85, Issue 13 https://doi.org/10.1103/physrevb.85.134110	journal	April 2012
Pressure-induced phase-transition sequence in CoF 2 : An experimental and first-principles study on the crystal, vibrational, and electronic properties Barreda-Argüeso, J. A.; López-Moreno, S.; Sanz-Ortiz, M. N. Physical Review B, Vol. 88, Issue 21 https://doi.org/10.1103/physrevb.88.214108	journal	December 2013
High-pressure structural study of MnF 2 Stavrou, Elissaios; Yao, Yansun; Goncharov, Alexander F. Physical Review B, Vol. 93, Issue 5 https://doi.org/10.1103/physrevb.93.054101	journal	February 2016
High-pressure polymorphism of Pb F 2 to 75 GPa Stan, Camelia V.; Dutta, Rajkrishna; White, Claire E. Physical Review B, Vol. 94, Issue 2 https://doi.org/10.1103/physrevb.94.024104	journal	July 2016
Equation of state of theα−PbO2andPa3¯-type phases ofGeO2to 120 GPa Dutta, R.; White, C. E.; Greenberg, E. Physical Review B, Vol. 98, Issue 14 https://doi.org/10.1103/physrevb.98.144106	journal	October 2018
The Estimation of Elastic Properties from Analogue Compounds Davies, G. F. Geophysical Journal International, Vol. 44, Issue 3 https://doi.org/10.1111/j.1365-246X.1976.tb00297.x	journal	March 1976
The Pyrite-Type High-Pressure Form of Silica Kuwayama, Y. Science, Vol. 309, Issue 5736 https://doi.org/10.1126/science.1114879	journal	August 2005
Optical phonon spectra of PbF2 single crystals Bazhenov, A. V.; Smirnova, I. S.; Fursova, T. N. Physics of the Solid State, Vol. 42, Issue 1 https://doi.org/10.1134/1.1131165	journal	January 2000
Structure and Lattice Dynamics of MF2 (M = Ca, Sr, Ba, Pb) in Cubic and Orthorhombic Phases: The ab initio Calculations Chernyshev, V. A.; Ryumshin, V. S.; Agzamova, P. A. Physics of the Solid State, Vol. 61, Issue 1 https://doi.org/10.1134/S1063783419010062	journal	January 2019
Theoretical calculations of the high-pressure phases of ZnF2 and CdF2 Wu, X.; Wu, Z. The European Physical Journal B, Vol. 50, Issue 4 https://doi.org/10.1140/epjb/e2006-00179-8	journal	April 2006
High Pressure Single Crystal Diffraction at PX^2 Zhang, Dongzhou; Dera, Przemyslaw K.; Eng, Peter J. Journal of Visualized Experiments, Issue 119 https://doi.org/10.3791/54660-v	journal	January 2017

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Title: High Pressure–Temperature Study of MgF2, CaF2, and BaF2 by Raman Spectroscopy: Phase Transitions and Vibrational Properties of AF2 Difluorides

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Title: High Pressure–Temperature Study of MgF₂, CaF₂, and BaF₂ by Raman Spectroscopy: Phase Transitions and Vibrational Properties of AF₂ Difluorides