Photon correlation spectroscopy of colloidal palladium using a coherent x-ray beam

被引:95
作者
ThurnAlbrecht, T
Steffen, W
Patkowski, A
Meier, G
Fischer, EW
Grubel, G
Abernathy, DL
机构
[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE
[2] ADAM MICKIEWICZ UNIV POZNAN,INST PHYS,POZNAN,POLAND
关键词
D O I
10.1103/PhysRevLett.77.5437
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have used an intense coherent x-ray beam and a real time digital autocorrelator to study the low frequency dynamics of colloidal palladium in glycerol by x-ray photon correlation spectroscopy (XPCS). The translational diffusion was studied in the q range from 1.5 x 10(-3) to 6 x 10(-3) Angstrom(-1) and in the temperature range from 279 to 293 K. The measured relaxation rates were proportional to q(2) and inversely proportional to viscosity as expected for a translational diffusion process. experiment shows that XPCS can be performed in a wide time range (10(-4) to 100 s) and opens up a new opportunity for the study of the dynamics of nontransparent media.
引用
收藏
页码:5437 / 5440
页数:4
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