ACCURATE DETERMINATION OF THE EXCITON ENERGY-GAP AND THE LA AND LO MOMENTUM-CONSERVING PHONON ENERGIES IN GERMANIUM

被引:15
作者
MAYER, AE
LIGHTOWLERS, EC
机构
[1] Wheatstone Physics Laboratory, King's College, Strand
来源
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 13期
关键词
D O I
10.1088/0022-3719/12/13/004
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Free-exciton absorption measurements in the temperature range 2-20K and corresponding luminescence measurements between 5 and 12K on high-purity germanium are described. Accurate threshold energies have been determined to yield values for the exciton energy gap, the LA and LO momentum-conserving phonon energies and the groundstate splitting of the free exciton.
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页码:L507 / L512
页数:6
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