High-pressure synthesis of the BaIrO3 perovskite: A Pauli paramagnetic metal with a Fermi liquid ground state
文献类型：期刊论文
| 作者 | Cheng, JG ; Ishii, T ; Kojitani, H ; Matsubayashi, K ; Matsuo, A ; Li, X ; Shirako, Y ; Zhou, JS ; Goodenough, JB ; Jin, CQ ; Akaogi, M ; Uwatoko, Y |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2013 |
| 卷号 | 88期号:20 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Cheng, JG (reprint author), Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, Japan. |
| 中文摘要 | BaIrO3 adopts the 9R polytype structure if it is synthesized at ambient pressure. High-pressure and high-temperature treatments up to 10 GPa have led to other 5H and 6H polytype phases, which are quenchable to the ambient condition. However, the single-phase 3C perovskite, the end member of polytypes, has not been obtained so far. Here we report the high-pressure synthesis of BaIrO3 perovskite under 25 GPa and 1150 degrees C. Rietveld refinement on the powder x-ray diffraction pattern revealed that this new compound crystallizes in a tetragonal I4/mcm structure rather than the expected cubic Pm-3m structure. The new perovskite is a Pauli paramagnetic metal with a Fermi liquid ground state, i.e., rho proportional to T-2 below 6 K. The availability of BaIrO3 perovskite also allows completion of the structure-physical property evolution in the AIrO(3) perovskites (A = Ca, Sr, Ba). The Fermi energy located in bands originated from Ir: 5d and O: 2p electrons are found to be very sensitive to the change of crystal structure. |
| 资助信息 | Chinese Academy of Sciences; NSF; MOST of China [Y2K5016X51, 11304371, 2014CB921500]; NSF MIRT [DMR 1122603, DMR 0904282]; Robert A Welch foundation [F-1066]; [12F02023]; [23340101]; [24740220]; [252460135]; [25287145] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57083]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cheng, JG,Ishii, T,Kojitani, H,et al. High-pressure synthesis of the BaIrO3 perovskite: A Pauli paramagnetic metal with a Fermi liquid ground state[J]. PHYSICAL REVIEW B,2013,88(20). |
| APA | Cheng, JG.,Ishii, T.,Kojitani, H.,Matsubayashi, K.,Matsuo, A.,...&Uwatoko, Y.(2013).High-pressure synthesis of the BaIrO3 perovskite: A Pauli paramagnetic metal with a Fermi liquid ground state.PHYSICAL REVIEW B,88(20). |
| MLA | Cheng, JG,et al."High-pressure synthesis of the BaIrO3 perovskite: A Pauli paramagnetic metal with a Fermi liquid ground state".PHYSICAL REVIEW B 88.20(2013). |
入库方式： OAI收割
来源：物理研究所
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