Peculiar bonding associated with atomic doping and hidden honeycombs in borophene
學年 106
學期 2
出版（發表）日期 2018-02-20
作品名稱 Peculiar bonding associated with atomic doping and hidden honeycombs in borophene
作品名稱（其他語言）
著者 Chi-Cheng Lee; Baojie Feng; Marie D'angelo; Ryu Yukawa, Ro-Ya Liu; Takahiro Kondo; Hiroshi Kumigashira; Iwao Matsuda; Taisuke Ozaki
單位
出版者
著錄名稱、卷期、頁數 Phys. Rev. B 97(7), 075430
摘要 Engineering atomic-scale structures allows great manipulation of physical properties and chemical processes for advanced technology. We show that the B atoms deployed at the centers of honeycombs in boron sheets, borophene, behave as nearly perfect electron donors for filling the graphitic σ bonding states without forming additional in-plane bonds by first-principles calculations. The dilute electron density distribution owing to the weak bonding surrounding the center atoms provides easier atomic-scale engineering and is highly tunable via in-plane strain, promising for practical applications, such as modulating the extraordinarily high thermal conductance that exceeds the reported value in graphene. The hidden honeycomb bonding structure suggests an unusual energy sequence of core electrons that has been verified by our high-resolution core-level photoelectron spectroscopy measurements. With the experimental and theoretical evidence, we demonstrate that borophene exhibits a peculiar bonding structure and is distinctive among two-dimensional materials.
關鍵字
語言 en_US
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 USA
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117168 )