Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study
A thorough analysis of the first-order vibrational spectrum of LuVO<sub>4</sub> is presented by using polarized micro-Raman spectroscopy with special focus on the phonon modes with the weakest intensity and occasional controversial assignment. Group-theory analysis is carried out to demo...
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| Format: | Article |
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MDPI AG
2020-04-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/5/341 |
| _version_ | 1797569580074270720 |
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| author | Peter Rafailov Dimitre Dimitrov Yen-Fu Chen Chi-Shen Lee Jenh-Yih Juang |
| author_facet | Peter Rafailov Dimitre Dimitrov Yen-Fu Chen Chi-Shen Lee Jenh-Yih Juang |
| author_sort | Peter Rafailov |
| collection | DOAJ |
| description | A thorough analysis of the first-order vibrational spectrum of LuVO<sub>4</sub> is presented by using polarized micro-Raman spectroscopy with special focus on the phonon modes with the weakest intensity and occasional controversial assignment. Group-theory analysis is carried out to demonstrate the determination of numbers and symmetries of the Raman active modes. Crystal- and correlation-field splitting effects in the vibrational spectrum of LuVO<sub>4</sub> are discussed. Under conditions adjusted to minimize the birefringence effects we recorded, in each main scattering configuration, a series of Raman spectra in different sample orientations achieved by rotating the sample around the incident laser beam. The dependence of the Raman intensity on the rotational angle allowed us to identify the correct symmetry of the phonons with exceptionally weak scattering cross-section. A complete assignment of all twelve first-order Raman active phonons of LuVO<sub>4</sub> is thus obtained. |
| first_indexed | 2024-03-10T20:13:12Z |
| format | Article |
| id | doaj.art-8a04acb1f3c24ff4a4317f5607f320f0 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T20:13:12Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-8a04acb1f3c24ff4a4317f5607f320f02023-11-19T22:47:10ZengMDPI AGCrystals2073-43522020-04-0110534110.3390/cryst10050341Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman StudyPeter Rafailov0Dimitre Dimitrov1Yen-Fu Chen2Chi-Shen Lee3Jenh-Yih Juang4Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, BulgariaInstitute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, BulgariaDepartment of Electrophysics, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010, TaiwanDepartment of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010, TaiwanDepartment of Electrophysics, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010, TaiwanA thorough analysis of the first-order vibrational spectrum of LuVO<sub>4</sub> is presented by using polarized micro-Raman spectroscopy with special focus on the phonon modes with the weakest intensity and occasional controversial assignment. Group-theory analysis is carried out to demonstrate the determination of numbers and symmetries of the Raman active modes. Crystal- and correlation-field splitting effects in the vibrational spectrum of LuVO<sub>4</sub> are discussed. Under conditions adjusted to minimize the birefringence effects we recorded, in each main scattering configuration, a series of Raman spectra in different sample orientations achieved by rotating the sample around the incident laser beam. The dependence of the Raman intensity on the rotational angle allowed us to identify the correct symmetry of the phonons with exceptionally weak scattering cross-section. A complete assignment of all twelve first-order Raman active phonons of LuVO<sub>4</sub> is thus obtained.https://www.mdpi.com/2073-4352/10/5/341rare-earth orthovanadatessingle crystalLuVO<sub>4</sub>Raman spectroscopyoptical phonons |
| spellingShingle | Peter Rafailov Dimitre Dimitrov Yen-Fu Chen Chi-Shen Lee Jenh-Yih Juang Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study Crystals rare-earth orthovanadates single crystal LuVO<sub>4</sub> Raman spectroscopy optical phonons |
| title | Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study |
| title_full | Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study |
| title_fullStr | Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study |
| title_full_unstemmed | Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study |
| title_short | Symmetry of the Optical Phonons in LuVO<sub>4</sub>: A Raman Study |
| title_sort | symmetry of the optical phonons in luvo sub 4 sub a raman study |
| topic | rare-earth orthovanadates single crystal LuVO<sub>4</sub> Raman spectroscopy optical phonons |
| url | https://www.mdpi.com/2073-4352/10/5/341 |
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