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Semimetallicity of free-standing hydrogenated monolayer boron from MgB2
- Source :
- Physical Review Materials. 3
- Publication Year :
- 2019
- Publisher :
- American Physical Society (APS), 2019.
-
Abstract
- Electronic states of a free-standing hydrogenated monolayer boron (HB) sheet were studied via soft X-ray spectroscopies at the B K-shell absorption edge and first-principles calculations. The HB sheet is semimetallic with electron and hole pockets at the Y and Γ points, respectively. The electron band results from the B-H-B bonds formed during synthesis from a MgB2 crystal, while the hole band is kept through the process and originates from a honeycomb lattice boron layer or borophene in MgB2. Our results suggest that the HB sheet is a promising two-dimensional material for realizing new boron-based or superconducting nanodevices.
- Subjects :
- Superconductivity
Materials science
Physics and Astronomy (miscellaneous)
chemistry.chemical_element
02 engineering and technology
Electron
021001 nanoscience & nanotechnology
01 natural sciences
Electronic states
Crystallography
Absorption edge
chemistry
Lattice (order)
0103 physical sciences
Monolayer
Borophene
General Materials Science
010306 general physics
0210 nano-technology
Boron
Subjects
Details
- ISSN :
- 24759953
- Volume :
- 3
- Database :
- OpenAIRE
- Journal :
- Physical Review Materials
- Accession number :
- edsair.doi...........c119834c43e0e917c7038688ded19319