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Calculated spin polarization of field-assisted GaAs electron source

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Il Nuovo Cimento A (1971-1996)

Summary

Calculations are reported showing that for the field-assisted GaAs NEA photocathode, the spin polarization of emitted electrons can be 3.6 times higher than for non-field GaAs sources. The reason for this is that the electron diffusion time in field-assisted GaAs cathodes is shorter than that in conventional GaAs NEA cathodes.

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References

  1. C. K. Sinclair:Report on Polarized Electron Source and Electron Polarimetry Workshop, Internal Report CEBAF-PR-89-002, Newport, Va. (USA).

  2. C. K. Sinclair andH. Miller:IEEE Trans. Nucl. Sci., NS-28, 2649 (1981).

    Article  ADS  Google Scholar 

  3. R. Calabrese, J. M. Gong, V. Guidi, F. Masoli andL. Tecchio:Nucl. Instrum. Methods A,309, 21 (1991).

    Article  ADS  Google Scholar 

  4. R. Calabrese, V. Guidi, G. Lamanna andL. Tecchio:J. Phys. III,2, 473 (1992).

    Google Scholar 

  5. H. J. Drouhin, C. Hermann andG. Lampel:Phys Rev. B,31, 3872 (1985).

    Article  ADS  Google Scholar 

  6. M. I. D’Yakonov andV. I. Perel:Sov. Phys. JETP,33, 1053 (1971).

    ADS  Google Scholar 

  7. R. J. Elliott:Phys. Rev. B,96, 266 (1954).

    Article  ADS  Google Scholar 

  8. G. L. Bir:Sov. Phys. JETP,42, 705 (1976).

    ADS  Google Scholar 

  9. Y. Kurihara, T. Omori, T. Nakahishi, H. Aoyagi, T. Baba, K. Itoga, M. Mizuta, S. Nakzmura, Y. Takeuchi, M. Tsubata andM. Yoshioka:Nucl. Instrum. Methods A,313, 393 (1992).

    Article  ADS  Google Scholar 

  10. T. Maruyama, E. L. Garwin, R. Prepost, G. H. Zapalac J. S. Smith andJ. D. Walker:Phys. Rev. Lett.,66, 2376 (1991).

    Article  ADS  Google Scholar 

  11. R. L. Bell: inNegative Electron Affinity Devices (Clarendon Oxford, 1973).

    Google Scholar 

  12. The spin relaxation time is 1.5·10−11 s, see [10]..

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Laboratori Nazionali di Legnaro, I-35020, Legnaro, Italy

    B. Yang, V. Guidi & L. Tecchio

  2. Xian Institute of Optics and Precision Mechanics, Academia Sinica, Xian, People’s Republic of China

    B. Yang

  3. Dipartimento di Fisica dell’Università, Ferrara, Italy

    V. Guidi

  4. INFN, Sezione di Ferrara, I-44100, Ferrara, Italy

    V. Guidi

  5. Dipartimento di Fisica Sperimentale dell’Università, Torino, Italy

    L. Tecchio

  6. INFN, Sezione di Torino, I-10125, Torino, Italy

    L. Tecchio

Authors
  1. B. Yang
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  2. V. Guidi
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  3. L. Tecchio
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Yang, B., Guidi, V. & Tecchio, L. Calculated spin polarization of field-assisted GaAs electron source. Nuov Cim A 106, 231–235 (1993). https://doi.org/10.1007/BF02800065

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  • DOI: https://doi.org/10.1007/BF02800065

PACS 29.25

PACS 07.77

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