Issue |
Eur. Phys. J. Appl. Phys.
Volume 52, Number 3, December 2010
|
|
---|---|---|
Article Number | 31601 | |
Number of page(s) | 8 | |
Section | Surfaces and Interfaces | |
DOI | https://doi.org/10.1051/epjap/2010160 | |
Published online | 30 November 2010 |
https://doi.org/10.1051/epjap/2010160
The electronic structure of Li2B4O7(110) and Li2B4O7(100)
1
Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson Air, Force Base, OH, 45433-7765, USA
2
Department of Physics and Astronomy and the Nebraska Center for
Materials and Nanoscience, University of Nebraska-Lincoln, P.O. Box 880111, Lincoln, NE, 68588-0111, USA
3
J. Bennett Johnston Sr. Center for Advanced Microstructures and Devices,
Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA, 70806, USA
4
Institute of Physical Optics, Dragomanov 23, Lviv, 79005, Ukraine
5
Cincinatti Children's Hospital Medical Center, 32344 Burnet Avenue, Cincinatti, OH, USA
Corresponding author: pdowben@unl.edu
Received:
31
May
2010
Accepted:
13
August
2010
Published online:
30
November
2010
The band structure of Li2B4O7(100) and Li2B4O7(110) was experimentally determined using a combination of angle-resolved photoemission and angle-resolved inverse photoemission spectroscopies. The experimental band gap depends on crystallographic direction but exceeds 8.8 eV, while the bulk band gap is believed to be in the vicinity of 9.8 eV, in qualitative agreement with expectations. The occupied bulk band structure indicates relatively large values for the hole mass; with the hole mass as significantly larger than that of the electron mass derived from the unoccupied band structure. The Li2B4O7(110) surface is characterized by a very light mass image potential state and a surface state that falls within the band gap of the projected bulk band structure.
© EDP Sciences, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.