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Formation of (Xe2H)* centers in solid Xe via recombination: nonstationary luminescence and «internal electron emission»
Репозиторій DSpace/Manakin
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Formation of (Xe2H)* centers in solid Xe via recombination: nonstationary luminescence and «internal electron emission»
Тема:
Специальный выпуск Nanostructures and Impurity Centers in Cryogenic Environment Guest editors M. Räsänen and E.V. Savchenko
Інший ID:
PACS: 78.60.Hk, 78.60.–b, 79.75.+g
Посилання:
Formation of (Xe2H)* centers in solid Xe via recombination: nonstationary luminescence and «internal electron emission» / E.V. Savchenko, I.V. Khyzhniy, S.A. Uyutnov, G.B. Gumenchuk, A.N. Ponomaryov, M.K. Beyer, V.E. Bondybey // Физика низких температур. — 2010. — Т. 36, № 5. — С. 512-515. — Бібліогр.: 29 назв. — англ.
Підтримка:
The authors thank Markku Räsänen and Leonid Khriachtchev for valuable comments. E.V.S., I.V.Kh. and S.A.U. would like to acknowledge DFG for travel grant.
Дата:
2010
Переглядів:
724
Завантажень:
297
Анотація:
The formation of excimers (Xe2H)* in solid Xe doped with molecular hydrogen under electron beam is studied using the original two-stage technique of nonstationary (NS) cathodoluminescence (CL) in combination with the current activation spectroscopy method — thermally stimulated exoelectron emission (TSEE). Charged species were generated using a high-density electron beam. The species produced were then probed with a lowdensity beam on gradual sample heating. The near UV emission of the (Xe2H)* was used to monitor the neutralization process. It is found that the temperature behavior of the NS CL band of (Xe2H)* clearly correlates with the yield of TSEE measured after identical pre-irradiation of the sample. The fingerprints of the thermally stimulated detrapping of electrons — «internal electron emission» in the spectrum of NS CL point to the essential role of neutralization reaction in the stability of the proton solvated by rare-gas atoms.
