| 摘要 |
An electron beam is monochromatized, brought to an appropriate energy level, by acceleration or slowing down, and focussed on a monocrystal electron scattering surface. Backscattered electrons are measured at complementary scattering angles, but only after slow electrons are separated or trapped that result from inelastic interaction with the crystal. The response of the detectors of a pair, in pulse count or current flow, allows the degree of spin polarization P to be calculated by P=fx(I1-I2)/I1+I2).
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