New Spin-Polarized Electron Source Based on Alkali Antimonide Photocathode | Sciact - CRIS-system of Boreskov Institute of Catalysis

New Spin-Polarized Electron Source Based on Alkali Antimonide Photocathode Full article

Journal

Physical Review Letters
ISSN: 0031-9007 , E-ISSN: 1079-7114

Output data

Year: 2022, Volume: 129, Number: 16, Article number : 166802, Pages count : 13 DOI: 10.1103/physrevlett.129.166802

Authors

Rusetsky V.S. ^1,2 , Golyashov V.A. ^1,3,4 , Eremeev S.V. ⁵ , Kustov D.A. ¹ , Rusinov I.P. ⁶ , Shamirzaev T.S. ^1,4 , Mironov A.V. ² , Demin A.Yu. ² , Tereshchenko O.E. ^1,3,4

Affiliations

1	Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
2	CJSC “Ekran FEP”, Novosibirsk 630060, Russia
3	Synchrotron radiation facility SKIF, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Kol’tsovo 630559, Russia
4	Novosibirsk State University, Novosibirsk 630090 Russia
5	Institute of Strength Physics and Materials Science, Tomsk 634055, Russia
6	Tomsk State University, Tomsk 634050, Russia

New spin-dependent photoemission properties of alkali antimonide semiconductor cathodes are predicted based on the detected optical spin orientation effect and DFT band structure calculations. Using these results, the Na2KSb/Cs3Sb heterostructure is designed as a spin-polarized electron source in combination with the Al0.11Ga0.89As target as a spin detector with spatial resolution. In the Na2KSb/Cs3Sb photocathode, spin-dependent photoemission properties were established through detection of a high degree of photoluminescence polarization and high polarization of the photoemitted electrons. It was found that the multi-alkali photocathode can provide electron beams with emittance very close to the limits imposed by the electron thermal energy. The vacuum tablet-type sources of spin-polarized electrons have been proposed for accelerators, which can exclude the construction of the photocathode growth chambers for photoinjectors.

Rusetsky V.S. , Golyashov V.A. , Eremeev S.V. , Kustov D.A. , Rusinov I.P. , Shamirzaev T.S. , Mironov A.V. , Demin A.Y. , Tereshchenko O.E.
New Spin-Polarized Electron Source Based on Alkali Antimonide Photocathode
Physical Review Letters. 2022. V.129. N16. 166802 :1-13. DOI: 10.1103/physrevlett.129.166802 WOS Scopus ANCAN PMID OpenAlex publication_identifier_short.sciact_skif_identifier_type

Submitted:	May 10, 2022
Accepted:	Sep 20, 2022
Published print:	Oct 14, 2022
Published online:	Oct 14, 2022

Web of science:	WOS:000886544700008
Scopus:	2-s2.0-85140266101
Chemical Abstracts:	2022:2816216
Chemical Abstracts (print):	181:24526
PMID:	36306756
OpenAlex:	W4280608897
publication_identifier.sciact_skif_identifier_type:	1540

DB	Citing
OpenAlex	29
Scopus	28
Web of science	25