Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11)
The structure, transport, thermodynamic properties, x-ray absorption spectra (XAS), and electronic structure of a new barium titanate suboxide, Ba1+δTi13−δO12 (δ = 0.11), are reported. It is a paramagnetic poor metal with hole carriers dominating the transport. Fermi liquid behavior appears at low t...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2015-04-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4916991 |
| _version_ | 1818358235796602880 |
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| author | Costel R. Rotundu Shan Jiang Xiaoyu Deng Yiting Qian Saeed Khan David G. Hawthorn Gabriel Kotliar Ni Ni |
| author_facet | Costel R. Rotundu Shan Jiang Xiaoyu Deng Yiting Qian Saeed Khan David G. Hawthorn Gabriel Kotliar Ni Ni |
| author_sort | Costel R. Rotundu |
| collection | DOAJ |
| description | The structure, transport, thermodynamic properties, x-ray absorption spectra (XAS), and electronic structure of a new barium titanate suboxide, Ba1+δTi13−δO12 (δ = 0.11), are reported. It is a paramagnetic poor metal with hole carriers dominating the transport. Fermi liquid behavior appears at low temperature. The oxidization state of Ti obtained by the XAS is consistent with the metallic Ti2+ state. Local density approximation band structure calculations reveal the material is near the Van Hove singularity. The pseudogap behavior in the Ti-d band and the strong hybridization between the Ti-d and O-p orbitals reflect the characteristics of the building blocks of the Ti13 semi-cluster and the TiO4 quasi-squares, respectively. |
| first_indexed | 2024-12-13T20:25:47Z |
| format | Article |
| id | doaj.art-ee2fd73b4b57469ba582402bbecc5ff8 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-13T20:25:47Z |
| publishDate | 2015-04-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-ee2fd73b4b57469ba582402bbecc5ff82022-12-21T23:32:34ZengAIP Publishing LLCAPL Materials2166-532X2015-04-0134041517041517-810.1063/1.4916991021591APMPhysical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11)Costel R. Rotundu0Shan Jiang1Xiaoyu Deng2Yiting Qian3Saeed Khan4David G. Hawthorn5Gabriel Kotliar6Ni Ni7Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USADepartment of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USADepartment of Physics, Rutgers University, Piscataway, New Jersey 08854, USADepartment of Physics and Astronomy, University of Waterloo, Waterloo N2L 3G1, CanadaUCLA Molecular Instrumentation Center, University of California Los Angeles, Los Angeles, California 90095, USADepartment of Physics and Astronomy, University of Waterloo, Waterloo N2L 3G1, CanadaDepartment of Physics, Rutgers University, Piscataway, New Jersey 08854, USADepartment of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USAThe structure, transport, thermodynamic properties, x-ray absorption spectra (XAS), and electronic structure of a new barium titanate suboxide, Ba1+δTi13−δO12 (δ = 0.11), are reported. It is a paramagnetic poor metal with hole carriers dominating the transport. Fermi liquid behavior appears at low temperature. The oxidization state of Ti obtained by the XAS is consistent with the metallic Ti2+ state. Local density approximation band structure calculations reveal the material is near the Van Hove singularity. The pseudogap behavior in the Ti-d band and the strong hybridization between the Ti-d and O-p orbitals reflect the characteristics of the building blocks of the Ti13 semi-cluster and the TiO4 quasi-squares, respectively.http://dx.doi.org/10.1063/1.4916991 |
| spellingShingle | Costel R. Rotundu Shan Jiang Xiaoyu Deng Yiting Qian Saeed Khan David G. Hawthorn Gabriel Kotliar Ni Ni Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) APL Materials |
| title | Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) |
| title_full | Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) |
| title_fullStr | Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) |
| title_full_unstemmed | Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) |
| title_short | Physical properties and electronic structure of a new barium titanate suboxide Ba1+δTi13−δO12 (δ = 0.11) |
| title_sort | physical properties and electronic structure of a new barium titanate suboxide ba1 δti13 δo12 δ 0 11 |
| url | http://dx.doi.org/10.1063/1.4916991 |
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