Ultrahigh-resolution spin-resolved photoemission spectrometer with a mini Mott detector.

Ultrahigh-resolution spin-resolved photoemission spectrometer with a mini Mott detector.
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DOI：
10.1063/1.3480542
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发表时间：
2010-09
期刊：
The Review of scientific instruments
影响因子：
--
通讯作者：
S. Souma;A. Takayama;K. Sugawara;Takafumi Sato;Takashi Takahashi
S. Souma;A. Takayama;K. Sugawara;Takafumi Sato;Takashi Takahashi
中科院分区：
其他
文献类型：
--
作者：
S. Souma;A. Takayama;K. Sugawara;Takafumi Sato;Takashi Takahashi

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我们研制了一台超高分辨率自旋分辨光电子能谱仪，它采用高效微型莫特探测器和强氙等离子体放电灯。该谱仪实现的能量分辨率为0.9和8毫电子伏的非自旋分辨和自旋分辨模式，分别。三维自旋极化是通过使用位于莫特探测器之前的90°电子偏转器来确定的。通过观察到Bi（111）表面态的Rashba分裂，验证了谱仪的性能。
We have developed an ultrahigh-resolution spin-resolved photoemission spectrometer with a highly efficient mini Mott detector and an intense xenon plasma discharge lamp. The spectrometer achieves the energy resolutions of 0.9 and 8 meV for non-spin-resolved and spin-resolved modes, respectively. Three-dimensional spin-polarization is determined by using a 90° electron deflector situated before the Mott detector. The performance of spectrometer is demonstrated by observation of a clear Rashba splitting of the Bi(111) surface states.