Dynamic structure factor of diamond and LiF measured using inelastic X-ray scattering

被引:53
作者
Caliebe, WA [1 ]
Soininen, JA
Shirley, EL
Kao, CC
Hämäläinen, K
机构
[1] Forschungszentrum, Inst Festkorperforsch, D-52425 Julich, Germany
[2] Natl Inst Stand & Technol, Opt Technol Div, Phys Lab, Gaithersburg, MD 20899 USA
[3] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[4] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland
关键词
D O I
10.1103/PhysRevLett.84.3907
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The dynamic structure factors S((q) over right arrow, omega) of diamond and LiF have been measured using inelastic x-ray scattering. The experimental data are compared to results of ab initio calculations, which take into account the interaction of the excited electron with the remaining hole. In diamond, the vicinity of the indirect band gap and its momentum dependence are studied. In LiF, a larger energy range, which covers the fundamental exciton, the plasmon, and several interband transitions, is investigated. Calculations and measurements agree quite well and emphasize the need to properly include the interaction of the excited electron in the conduction band with the hole in the valence band.
引用
收藏
页码:3907 / 3910
页数:4
相关论文
共 30 条
[1]  
ALTARELLI M, COMMUNICATION
[2]   ENERGY-LOSS SPECTRA AND PLASMON DISPERSIONS IN ALKALI-METALS - NEGATIVE PLASMON DISPERSION IN CS [J].
ARYASETIAWAN, F ;
KARLSSON, K .
PHYSICAL REVIEW LETTERS, 1994, 73 (12) :1679-1682
[3]   Ab initio calculation of ε2(ω) including the electron-hole interaction:: Application to GaN and CaF2 [J].
Benedict, LX ;
Shirley, EL .
PHYSICAL REVIEW B, 1999, 59 (08) :5441-5451
[4]  
BURKEL E, 1991, INELASTIC SCATTERING
[5]  
CALIEBE WA, 1997, THESIS U KIEL
[6]   1ST-PRINCIPLES LINEAR COMBINATION OF ATOMIC ORBITALS METHOD FOR THE COHESIVE AND STRUCTURAL-PROPERTIES OF SOLIDS - APPLICATION TO DIAMOND [J].
CHELIKOWSKY, JR ;
LOUIE, SG .
PHYSICAL REVIEW B, 1984, 29 (06) :3470-3481
[7]   ELECTRONIC EXCITATIONS IN LIF - 10-70EV [J].
FIELDS, JR ;
GIBBONS, PC ;
SCHNATTERLY, SE .
PHYSICAL REVIEW LETTERS, 1977, 38 (08) :430-434
[8]   BAND-STRUCTURE AND MANY-BODY EFFECTS IN THE DYNAMICAL RESPONSE OF ALUMINUM METAL [J].
FLESZAR, A ;
QUONG, AA ;
EGUILUZ, AG .
PHYSICAL REVIEW LETTERS, 1995, 74 (04) :590-593
[9]  
HAMALAINEN K, 1995, REV SCI INSTRUM, V66, P1525, DOI 10.1063/1.1145898
[10]   Inelastic X-ray scattering study of solid and liquid Li and Na [J].
Hill, JP ;
Kao, CC ;
Caliebe, WAC ;
Gibbs, D ;
Hastings, JB .
PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3665-3668