Relaxation experiments with synchrotron radiation
Relaxation experiments with synchrotron radiation
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同步加速器辐射弛豫实验
DOI:
10.1023/a:1012611313603
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发表时间:
1998
影响因子:
--
通讯作者:
R. Rüffer
中科院分区:
文献类型:
--
作者:
O. Leupold;A. Bernhard;E. Gerdau;J. Jäschke;H. D. Rüter;Yu. Shvydko;H. de Waard;E. Alp;P. Hession;M. Hu;W. Sturhahn;J. Sutter;T. Toellner;A. Chumakov;J. Metge;R. Rüffer
Relaxation phenomena show up in standard energy domain Mössbauer spectra via line broadening. The evaluation of such spectra is in most cases done by adopting the stochastic theory mainly developed in the 60s and 70s. Due to the time structure and the polarization of the synchrotron radiation nuclear resonance forward scattering in the time domain gives valuable information on relaxation mechanisms. We report here mainly on Nuclear Forward Scattering (NFS) experiments investigating the paramagnetic relaxation of the Fe3+ ion in (NH)4Al0.9557Fe0.05(SO4)2·12H2O and briefly on recent investigations on charge fluctuations in Eu3S4.