Storage of Nuclear Excitation Energy through Magnetic Switching.
Storage of Nuclear Excitation Energy through Magnetic Switching.
复制标题
通过磁开关存储核激发能。
DOI：
10.1103/physrevlett.77.3232
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发表时间：
1996
影响因子：
8.6
通讯作者：
Schindelmann
中科院分区：
文献类型：
--
作者：
Shvyd'ko;Hertrich;van Bürck U;Gerdau;Leupold;Metge;Rueter;Schwendy;Smirnov;Potzel;Schindelmann
用14.4keV同步辐射脉冲激发{sup 57}FeBO{sub 3}晶体，通过改变晶体磁化方向来控制{sup 57}Fe核的衰变速率。激发后几纳秒的突然开关抑制了相干核衰变。稍后切换回来恢复它，从强烈的辐射尖峰开始。延迟再发射的增强是由于抑制期间储存的能量的释放。抑制与恢复的根源在于核国家的剧变和对核转型的干涉。美国物理学会（American Physical Society）
The decay rate of {sup 57}Fe nuclei in an {sup 57}FeBO{sub 3} crystal excited by 14.4keV synchrotron radiation pulses was controlled by switching the direction of the crystal magnetization. Abrupt switching some nanoseconds after excitation suppresses the coherent nuclear decay. Switching back at later times restores it, starting with an intense radiation spike. The enhanced delayed reemission is due to the release of the energy stored during the period of suppression. Suppression and restoration originate from drastic changes of the nuclear states and of the interference within the nuclear transitions. {copyright} {ital 1996 The American Physical Society.}