教師資料查詢 | 類別: 期刊論文 | 教師: 薛宏中 Hsueh, Hung-chung (瀏覽個人網頁)

標題:Magnetic and topological properties in hydrogenated transition metal dichalcogenide monolayers
學年
學期
出版(發表)日期2020/08/01
作品名稱Magnetic and topological properties in hydrogenated transition metal dichalcogenide monolayers
作品名稱(其他語言)
著者Liang-Ying Feng; Rovi Angelo B. Villaos; Harvey N. Cruzado; Zhi-Quan Huang; Chia-Hsiu Hsu; Hung-Chung Hsueh; Hsin Lin; Feng-Chuan Chuang
單位
出版者
著錄名稱、卷期、頁數Chinese Journal of Physics 66, p.15-23
摘要Two-dimensional (2D) transition metal dichalcogenide (TMD) monolayers have currently been of immense interest in materials research because of their versatility, and tunable electronic and magnetic properties. In this study, we systematically studied the electronic and magnetic properties in pristine and hydrogenated 1T, 1T’, and 2H TMD monolayers. We found Group IV (Ti, Zr, and Hf), VI (Cr, Mo, and W), and X (Ni, Pd, and Pt) pristine TMD monolayers, respectively, mostly adopted 1T, 2H, and 1T as their stable structures, except for WTe2 which exhibits 1T’. The stable 1T’ structure only exists for pristine WTe2 and it had been identified as a topological insulator with a band gap of 0.11 eV. Upon hydrogenation, a structural phase transition occurred from 1T to 2H in Group IV, while for Group X, the stable structure remained 1T. For Group VI, the stable phase transitioned from 1T to 2H or 1T’ phases. Moreover, we found nineteen 2D magnetic materials through hydrogenation. Finally, further exploration of band topologies under hybrid functional calculations revealed that four of these identified magnetic monolayer structures exhibit quantum anomalous Hall effect. Our findings show that hydrogenated TMDs provide a new ground in searching for materials which have the potential for spintronics applications.
關鍵字
語言英文
ISSN0577-9073
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版,紙本
相關連結
SDGs
  • 優質教育,產業創新與基礎設施
Google+ 推薦功能,讓全世界都能看到您的推薦!