Direct evidence of metallic bands in a monolayer boron sheet

被引：63

作者：

Feng, Baojie ^{[1
]}

Zhang, Jin ^{[2
]}

Liu, Ro-Ya ^{[1
]}

Iimori, Takushi ^{[1
]}

Lian, Chao ^{[2
]}

Li, Hui ^{[2
]}

Chen, Lan ^{[2
]}

Wu, Kehui ^{[2
,3
]}

Meng, Sheng ^{[2
,3
]}

Komori, Fumio ^{[1
]}

Matsuda, Iwao ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 04期

基金：

日本科学技术振兴机构;

关键词：

BETA-RHOMBOHEDRAL BORON; 2-DIMENSIONAL BORON; CHEMISTRY; SILICENE;

D O I：

10.1103/PhysRevB.94.041408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The search for metallic boron allotropes has attracted great attention in the past decades and recent theoretical works predict the existence of metallicity in monolayer boron. Here, we synthesize the beta(12)-sheet monolayer boron on a Ag(111) surface and confirm the presence of metallic boron-derived bands using angle-resolved photoemission spectroscopy. The Fermi surface is composed of one electron pocket at the (S) over bar point and a pair of hole pockets near the (X) over bar point, which is supported by the first-principles calculations. The metallic boron allotrope in beta(12) sheet opens the way to novel physics and chemistry in material science.

引用

页数：5

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