資料載入中.....
|
請使用永久網址來引用或連結此文件:
https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/117355
|
| 題名: | One-Fe versus Two-Fe Brillouin Zone of Fe-Based Superconductors: Creation of the Electron Pockets via Translational Symmetry Breaking |
| 作者: | Lin, Chia-Hui;Berlijn, Tom;Wang, Limin;Lee, Chi-Cheng;Yin, Wei-Guo;Ku, Wei |
| 日期: | 2011-12-13 |
| 上傳時間: | 2019-10-10 12:10:30 (UTC+8) |
| 出版者: | American Physical Society |
| 摘要: | We investigate the physical effects of translational symmetry breaking in Fe-based high-temperature superconductors due to alternating anion positions. In the representative parent compounds, including the newly discovered Fe-vacancy-ordered
K 0.8 Fe 1.6 Se 2, an unusual change of orbital character is found across the one-Fe Brillouin zone upon unfolding the first-principles band structure and Fermi surfaces, suggesting that covering a larger one-Fe Brillouin zone is necessary in experiments. Most significantly, the electron pockets (critical to the magnetism and superconductivity) are found only created with broken symmetry, advocating strongly its full inclusion in future studies, particularly on the debated nodal structures of the superconducting order parameter.We investigate the physical effects of translational symmetry breaking in Fe-based high-temperature superconductors due to alternating anion positions. In the representative parent compounds, including the newly discovered Fe-vacancy-ordered K 0.8 Fe 1.6 Se 2, an unusual change of orbital character is found across the one-Fe Brillouin zone upon unfolding the first-principles band structure and Fermi surfaces, suggesting that covering a larger one-Fe Brillouin zone is necessary in experiments. Most significantly, the electron pockets (critical to the magnetism and superconductivity) are found only created with broken symmetry, advocating strongly its full inclusion in future studies, particularly on the debated nodal structures of the superconducting order parameter. |
| 關聯: | Phys. Rev. Lett. 107, 257001 |
| DOI: | 10.1103/PhysRevLett.107.257001 |
| 顯示於類別: | [物理學系暨研究所] 期刊論文
|
文件中的檔案:
| 檔案 |
描述 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | | 0Kb | HTML | 83 | 檢視/開啟 | | One-Fe versus Two-Fe Brillouin Zone of Fe-Based Superconductors Creation of the Electron Pockets via Translational Symmetry Breaking.pdf | | 1334Kb | Adobe PDF | 3 | 檢視/開啟 |
|
在機構典藏中所有的資料項目都受到原著作權保護.
|
