期刊論文
| 學年 | 103 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2015-06-12 |
| 作品名稱 | A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class |
| 作品名稱（其他語言） | |
| 著者 | Shin-Ming Huang; Su-Yang Xu; Ilya Belopolski; Chi-Cheng Lee; Guoqing Chang; BaoKai Wang; Nasser Alidoust; Guang Bian; Madhab Neupane; Chenglong Zhang; Shuang Jia; Arun Bansil; Hsin Lin; M. Zahid Hasan |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Nature Communications 6, 7373 |
| 摘要 | Weyl fermions are massless chiral fermions that play an important role in quantum field theory but have never been observed as fundamental particles. A Weyl semimetal is an unusual crystal that hosts Weyl fermions as quasiparticle excitations and features Fermi arcs on its surface. Such a semimetal not only provides a condensed matter realization of the anomalies in quantum field theories but also demonstrates the topological classification beyond the gapped topological insulators. Here, we identify a topological Weyl semimetal state in the transition metal monopnictide materials class. Our first-principles calculations on TaAs reveal its bulk Weyl fermion cones and surface Fermi arcs. Our results show that in the TaAs-type materials the Weyl semimetal state does not depend on fine-tuning of chemical composition or magnetic order, which opens the door for the experimental realization of Weyl semimetals and Fermi arc surface states in real materials. |
| 關鍵字 | Quantum Hall;Theoretical physics |
| 語言 | en |
| ISSN | |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117190 ) |