The electronic structure of Li2B4O7(110) and Li2B4O7(100)

被引：14

作者：

Wooten, D. ^{[3
]}

Ketsman, I. ^{[1
,2
]}

Xiao, J. ^{[1
,2
]}

Losovyj, Ya. B. ^{[1
,2
,4
]}

Petrosky, J. ^{[3
]}

McClory, J. ^{[3
]}

Burak, Ya. V. ^{[5
]}

Adamiv, V. T. ^{[5
]}

Brown, J. M. ^{[6
]}

Dowben, P. A. ^{[1
,2
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

[3] USAF, Inst Technol, Wright Patterson AFB, OH 45433 USA

[4] Louisiana State Univ, J Bennett Johnston Sr Ctr Adv Microstruct & Devic, Baton Rouge, LA 70806 USA

[5] Inst Phys Opt, UA-79005 Lvov, Ukraine

[6] Cincinatti Childrens Hosp Med Ctr, Cincinnati, OH USA

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2010年 / 52卷 / 03期

关键词：

OPTICAL-PROPERTIES; NEUTRON-DETECTION; CRYSTAL-STRUCTURE; LITHIUM DIBORATE; BAND-STRUCTURE; PHOTOEMISSION; TETRABORATE; STATES; ABSORPTION; GROWTH;

D O I：

10.1051/epjap/2010160

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页数：8

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