Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Low-temperature creation of Frenkel defects via hot electron-hole recombination in highly pure NaCl single crystals
Репозиторій DSpace/Manakin
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Low-temperature creation of Frenkel defects via hot electron-hole recombination in highly pure NaCl single crystals
Тема:
Low-Temperature Radiation Effects in Wide Gap Materials
Інший ID:
PACS: 61.82.Ms, 78.55.Fv, 78.60.Hk
Посилання:
Low-temperature creation of Frenkel defects via hot electron-hole recombination in highly pure NaCl single crystals / A. Lushchik, Ch. Lushchik, V. Nagirnyi, E. Shablonin, E. Vasil’chenko // Физика низких температур. — 2016. — Т. 42, № 7. — С. 699-704. — Бібліогр.: 43 назв. — англ.
Підтримка:
The research leading to these results has received funding
from the Estonian Research Council — Institutional
Research Funding IUT02-26.
Дата:
2016
Переглядів:
822
Завантажень:
431
Анотація:
The creation spectrum of stable F centres (being part of F-H pairs of Frenkel defects) by synchrotron radiation of 7–40 eV has been measured for highly pure NaCl single crystals at 12 K using a highly sensitive luminescent method. It is shown that the efficiency of F centre creation in a closely packed NaCl is low at the decay of anion or cation excitons (7.8–8.4 and 33.4 eV, respectively) or at the recombination of relaxed conduction electrons and valence holes. Only the recombination of nonrelaxed (hot) electrons with holes provides the energy exceeding threshold value EFD, which is sufficient for the creation of Frenkel defects at low temperature.
