教師資料查詢 | 類別: 期刊論文 | 教師: 李啟正 LEE, CHI-CHENG (瀏覽個人網頁)

標題:Hidden mechanism for embedding the flat bands of Lieb, kagome, and checkerboard lattices in other structures
學年107
學期2
出版(發表)日期2019/07/31
作品名稱Hidden mechanism for embedding the flat bands of Lieb, kagome, and checkerboard lattices in other structures
作品名稱(其他語言)
著者Chi-Cheng Lee; Antoine Fleurence; Yukiko Yamada-Takamura; Taisuke Ozaki
單位
出版者
著錄名稱、卷期、頁數Phys. Rev. B 100, 045150
摘要The interplay of hopping parameters that can give rise to flat bands in consequence of quantum interference in electronic, photonic, and other interesting materials has become an extensively studied topic. Most of the recognized structures having flat bands are lattices that can be understood by the mathematical theory of line graphs, such as the Lieb, kagome, and checkerboard lattices. Here, we demonstrate that the structures that can realize the same kinds of flat bands given by those well-known lattices hosting exotic quantum phases are more flexible. The flat bands belonging to the recognized structures can be ideally embedded into new structures that cannot be considered as the original ones in terms of a unitary transformation. The uncovered mechanism enriches the understanding of physics behind the localized quantum states and broadens the choice of materials that can be used for designing electronic and photonic devices from the zero band dispersion.
關鍵字
語言英文(美國)
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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