Lattice dynamics of KxRhO2 single crystals
A series of crystals KxRhO2 (x = 0.72, 0.63, 0.55, 0.39, and 0.24) have been synthesized and their vibrational properties have been studied by first principles calculations, Raman spectroscopy, and inelastic neutron scattering. The measured vibrational spectra of KxRhO2 for x = 0.72 and 0.63 are con...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2015-08-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4928384 |
| _version_ | 1819278515104645120 |
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| author | Bin-Bin Zhang NaNa Zhang Song-Tao Dong Yangyang Lv Y. B. Chen Shuhua Yao Shan-Tao Zhang Zheng-Bin Gu Jian Zhou Ilde Guedes Dehong Yu Yan-Feng Chen |
| author_facet | Bin-Bin Zhang NaNa Zhang Song-Tao Dong Yangyang Lv Y. B. Chen Shuhua Yao Shan-Tao Zhang Zheng-Bin Gu Jian Zhou Ilde Guedes Dehong Yu Yan-Feng Chen |
| author_sort | Bin-Bin Zhang |
| collection | DOAJ |
| description | A series of crystals KxRhO2 (x = 0.72, 0.63, 0.55, 0.39, and 0.24) have been synthesized and their vibrational properties have been studied by first principles calculations, Raman spectroscopy, and inelastic neutron scattering. The measured vibrational spectra of KxRhO2 for x = 0.72 and 0.63 are consistent with the theoretical prediction for the stoichiometric KRhO2. For samples with x = 0.55, 0.39 and 0.24, extra vibrational modes have been observed and they are believed to be due to the symmetry reduction and the loss of translational symmetry induced by K disorder. The good agreement was found for the phonon density of states among the Raman spectroscopic observations, inelastic neutron scattering and the first principles calculations, as an evidence for the generation of structure disorder by K deficiency. |
| first_indexed | 2024-12-24T00:13:14Z |
| format | Article |
| id | doaj.art-023f162b66c54ad19af0f9d10e6dfaa8 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-24T00:13:14Z |
| publishDate | 2015-08-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-023f162b66c54ad19af0f9d10e6dfaa82022-12-21T17:24:49ZengAIP Publishing LLCAIP Advances2158-32262015-08-0158087111087111-710.1063/1.4928384011508ADVLattice dynamics of KxRhO2 single crystalsBin-Bin Zhang0NaNa Zhang1Song-Tao Dong2Yangyang Lv3Y. B. Chen4Shuhua Yao5Shan-Tao Zhang6Zheng-Bin Gu7Jian Zhou8Ilde Guedes9Dehong Yu10Yan-Feng Chen11National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaCollege of Chemistry & Chemical and Environmental Engineering, Weifang University, Weifang, 261061, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaDepartamento de Física, Universidade Federal do Ceará, Campus do Pici, CP 6030, Fortaleza CE 60455-760, BrazilBragg Institute, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, AustraliaNational Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaA series of crystals KxRhO2 (x = 0.72, 0.63, 0.55, 0.39, and 0.24) have been synthesized and their vibrational properties have been studied by first principles calculations, Raman spectroscopy, and inelastic neutron scattering. The measured vibrational spectra of KxRhO2 for x = 0.72 and 0.63 are consistent with the theoretical prediction for the stoichiometric KRhO2. For samples with x = 0.55, 0.39 and 0.24, extra vibrational modes have been observed and they are believed to be due to the symmetry reduction and the loss of translational symmetry induced by K disorder. The good agreement was found for the phonon density of states among the Raman spectroscopic observations, inelastic neutron scattering and the first principles calculations, as an evidence for the generation of structure disorder by K deficiency.http://dx.doi.org/10.1063/1.4928384 |
| spellingShingle | Bin-Bin Zhang NaNa Zhang Song-Tao Dong Yangyang Lv Y. B. Chen Shuhua Yao Shan-Tao Zhang Zheng-Bin Gu Jian Zhou Ilde Guedes Dehong Yu Yan-Feng Chen Lattice dynamics of KxRhO2 single crystals AIP Advances |
| title | Lattice dynamics of KxRhO2 single crystals |
| title_full | Lattice dynamics of KxRhO2 single crystals |
| title_fullStr | Lattice dynamics of KxRhO2 single crystals |
| title_full_unstemmed | Lattice dynamics of KxRhO2 single crystals |
| title_short | Lattice dynamics of KxRhO2 single crystals |
| title_sort | lattice dynamics of kxrho2 single crystals |
| url | http://dx.doi.org/10.1063/1.4928384 |
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