Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis
Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration s...
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| Autor*in: |
Krylova, S. N. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2004 |
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| Schlagwörter: |
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| Anmerkung: |
© MAIK "Nauka/Interperiodica" 2004 |
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| Übergeordnetes Werk: |
Enthalten in: Physics of the solid state - Nauka/Interperiodica, 1993, 46(2004), 7 vom: Juli, Seite 1311-1319 |
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| Übergeordnetes Werk: |
volume:46 ; year:2004 ; number:7 ; month:07 ; pages:1311-1319 |
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10.1134/1.1778457 |
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| 245 | 1 | 0 | |a Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis |
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| 520 | |a Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. | ||
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| 700 | 1 | |a Bulou, A. |4 aut | |
| 700 | 1 | |a Krylov, A. S. |4 aut | |
| 700 | 1 | |a Zamkova, N. G. |4 aut | |
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10.1134/1.1778457 doi (DE-627)OLC204069935X (DE-He213)1.1778457-p DE-627 ger DE-627 rakwb eng 530 VZ Krylova, S. N. verfasserin aut Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © MAIK "Nauka/Interperiodica" 2004 Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. Phase Transition Rubidium Tetragonal Phase Lattice Vibration Monoclinic Phase Vtyurin, A. N. aut Bulou, A. aut Krylov, A. S. aut Zamkova, N. G. aut Enthalten in Physics of the solid state Nauka/Interperiodica, 1993 46(2004), 7 vom: Juli, Seite 1311-1319 (DE-627)16567332X (DE-600)1159011-7 (DE-576)038490706 1063-7834 nnns volume:46 year:2004 number:7 month:07 pages:1311-1319 https://doi.org/10.1134/1.1778457 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_40 GBV_ILN_70 GBV_ILN_4306 GBV_ILN_4700 AR 46 2004 7 07 1311-1319 |
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10.1134/1.1778457 doi (DE-627)OLC204069935X (DE-He213)1.1778457-p DE-627 ger DE-627 rakwb eng 530 VZ Krylova, S. N. verfasserin aut Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © MAIK "Nauka/Interperiodica" 2004 Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. Phase Transition Rubidium Tetragonal Phase Lattice Vibration Monoclinic Phase Vtyurin, A. N. aut Bulou, A. aut Krylov, A. S. aut Zamkova, N. G. aut Enthalten in Physics of the solid state Nauka/Interperiodica, 1993 46(2004), 7 vom: Juli, Seite 1311-1319 (DE-627)16567332X (DE-600)1159011-7 (DE-576)038490706 1063-7834 nnns volume:46 year:2004 number:7 month:07 pages:1311-1319 https://doi.org/10.1134/1.1778457 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_40 GBV_ILN_70 GBV_ILN_4306 GBV_ILN_4700 AR 46 2004 7 07 1311-1319 |
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10.1134/1.1778457 doi (DE-627)OLC204069935X (DE-He213)1.1778457-p DE-627 ger DE-627 rakwb eng 530 VZ Krylova, S. N. verfasserin aut Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © MAIK "Nauka/Interperiodica" 2004 Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. Phase Transition Rubidium Tetragonal Phase Lattice Vibration Monoclinic Phase Vtyurin, A. N. aut Bulou, A. aut Krylov, A. S. aut Zamkova, N. G. aut Enthalten in Physics of the solid state Nauka/Interperiodica, 1993 46(2004), 7 vom: Juli, Seite 1311-1319 (DE-627)16567332X (DE-600)1159011-7 (DE-576)038490706 1063-7834 nnns volume:46 year:2004 number:7 month:07 pages:1311-1319 https://doi.org/10.1134/1.1778457 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_40 GBV_ILN_70 GBV_ILN_4306 GBV_ILN_4700 AR 46 2004 7 07 1311-1319 |
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10.1134/1.1778457 doi (DE-627)OLC204069935X (DE-He213)1.1778457-p DE-627 ger DE-627 rakwb eng 530 VZ Krylova, S. N. verfasserin aut Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © MAIK "Nauka/Interperiodica" 2004 Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. Phase Transition Rubidium Tetragonal Phase Lattice Vibration Monoclinic Phase Vtyurin, A. N. aut Bulou, A. aut Krylov, A. S. aut Zamkova, N. G. aut Enthalten in Physics of the solid state Nauka/Interperiodica, 1993 46(2004), 7 vom: Juli, Seite 1311-1319 (DE-627)16567332X (DE-600)1159011-7 (DE-576)038490706 1063-7834 nnns volume:46 year:2004 number:7 month:07 pages:1311-1319 https://doi.org/10.1134/1.1778457 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_40 GBV_ILN_70 GBV_ILN_4306 GBV_ILN_4700 AR 46 2004 7 07 1311-1319 |
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10.1134/1.1778457 doi (DE-627)OLC204069935X (DE-He213)1.1778457-p DE-627 ger DE-627 rakwb eng 530 VZ Krylova, S. N. verfasserin aut Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © MAIK "Nauka/Interperiodica" 2004 Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. Phase Transition Rubidium Tetragonal Phase Lattice Vibration Monoclinic Phase Vtyurin, A. N. aut Bulou, A. aut Krylov, A. S. aut Zamkova, N. G. aut Enthalten in Physics of the solid state Nauka/Interperiodica, 1993 46(2004), 7 vom: Juli, Seite 1311-1319 (DE-627)16567332X (DE-600)1159011-7 (DE-576)038490706 1063-7834 nnns volume:46 year:2004 number:7 month:07 pages:1311-1319 https://doi.org/10.1134/1.1778457 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_40 GBV_ILN_70 GBV_ILN_4306 GBV_ILN_4700 AR 46 2004 7 07 1311-1319 |
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lattice dynamics and raman scattering spectrum of elpasolite $ rb_{2} $$ kscf_{6} $: comparative analysis |
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Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis |
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Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. © MAIK "Nauka/Interperiodica" 2004 |
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Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. © MAIK "Nauka/Interperiodica" 2004 |
| abstract_unstemmed |
Abstract Raman scattering spectra of elpasolite $ Rb_{2} $$ KScF_{6} $ are studied in a wide temperature range including two phase transitions: from the cubic to the tetragonal phase and then to the monoclinic phase. The experimental Raman scattering spectrum is compared with the lattice vibration spectra of these phases calculated using an ab initio approach. A number of anomalies (caused by structural rearrangement during the phase transitions) are revealed and quantitatively analyzed in the ranges of both the intramolecular vibrations of the octahedron molecular $ ScF_{6} $ ions and low-frequency intermolecular lattice vibrations. The interaction between low-frequency intramolecular vibrations and the intermolecular modes is found to be significant, and strong resonance interaction of the rotational soft modes (which are recovered below the phase transition points) with hard low-frequency vibrations of the rubidium ion sublattice is detected. These interactions are shown to substantially complicate the spectra. © MAIK "Nauka/Interperiodica" 2004 |
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| title_short |
Lattice dynamics and Raman scattering spectrum of elpasolite $ Rb_{2} $$ KScF_{6} $: Comparative analysis |
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https://doi.org/10.1134/1.1778457 |
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Vtyurin, A. N. Bulou, A. Krylov, A. S. Zamkova, N. G. |
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