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Photoemission of spin-polarized electrons from negative electron affinity GaAsP (1979)

Conrath, D. ; Heindorff, T. ; Hermanni, A. ; [et al.]

Springer

Applied physics 20 (1979), S. 155-157

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ISSN: 1432-0630

Keywords: 79.60. Eq

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Abstract GaAs0.62P0.38 activated to negative electron affinity and irradiated with circularly polarized light of a wavelength shorter than approximately 680 nm emits electrons whose spins are mainly oriented antiparallel to the photon spins. At 650 nm a degree of electron spin polarization around 40% is observed. The spectrum of spin polarization of the photoelectrons is similar to that known from GaAs cathodes but is shifted to shorter wavelengths. 25 μA current of spin-polarized electrons were achieved with a 5 mW He-Ne laser.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00885937

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