ASSIGNMENT OF THE EVEN-PARITY EXCITONS IN CU2O

被引:47
作者
FROHLICH, D [1 ]
KENKLIES, R [1 ]
UIHLEIN, C [1 ]
SCHWAB, C [1 ]
机构
[1] UNIV LOUIS PASTEUR,CNRS,SPECTROSCOPIE & OPT CORP SOLIDE LAB,F-67000 STRASBOURG,FRANCE
关键词
D O I
10.1103/PhysRevLett.43.1260
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter presents for the first time a detailed two-photon spectrum of the even-parity excitons of the yellow series in Cu2O. Contrary to one-photon data, it is possible to measure directly S and D exciton contributions without applying external perturbations. The two-photon spectrum gives evidence for a strong mixing between the yellow and the green series which is explained by exchange interaction and nondiagonal parts in the effective-mass Hamiltonian. © 1979 The American Physical Society.
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页码:1260 / 1263
页数:4
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