Polarized electron beams with P {>=} 90%, Will it be Possible?
Polarized electron beams with P {>=} 90%, Will it be Possible?
复制标题
极化%20电子%20光束%20和%20P%20{>=}%2090%,%20%20it%20be%20可能吗？
DOI：
10.1142/s0217751x00002597
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发表时间：
2000
影响因子：
1.6
通讯作者：
J. Clendenin
中科院分区：
文献类型：
--
作者：
A. Subashiev;J. Clendenin
综述了光电阴极半导体结构中电子发射的电子自旋去极化研究的最新成果。在了解了电子退极化的主要机制之后，我们期望在新的超晶格结构中实现相当大的极化改善，这些结构可以设计成在激发和提取到表面时具有较少的退极化。通过降低光源的工作温度，有望获得额外的极化增长。
Recent results of electron spin depolarization studies in electron emission from the photocathode semiconductor structures are reviewed. The main mechanisms of electronic depolarization being well understood, a considerable improvement of polarization is expected to be achieved in new superlattice structures, which can be designed to have less depolarization at excitation and in extraction to the surface. Additional polarization growth is expected to be obtained by lowering the operating temperature of the source.