Tytuł pozycji:
Ortho-Positronium Annihilation in Room Temperature Ionic Liquids
- Tytuł:
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Ortho-Positronium Annihilation in Room Temperature Ionic Liquids
- Autorzy:
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Hirade, T.
- Powiązania:
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https://bibliotekanauki.pl/articles/1030029.pdf
- Data publikacji:
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2017-11
- Wydawca:
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Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
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78.70.Bj
- Źródło:
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Acta Physica Polonica A; 2017, 132, 5; 1470-1472
0587-4246
1898-794X
- Język:
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angielski
- Prawa:
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Wszystkie prawa zastrzeżone. Swoboda użytkownika ograniczona do ustawowego zakresu dozwolonego użytku
- Dostawca treści:
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Biblioteka Nauki
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Przejdź do źródła  Link otwiera się w nowym oknie
Very new phenomena have been found in room temperature ionic liquids, e.g. oscillation of positronium (Ps) bubble. It is almost impossible to see this kind of phenomenon in usual molecular liquids. The Ps bubble oscillations in N,N,N-trimethyl-N-propylammonium bis(trifluoro-methanesulfonyl)imide (TMPA-TFSI), N-methyl-N-propylpiperidinium bis(trifluoromethane-sulfonyl) imide (PP13-TFSI) and 1-ethyl-3-methylimidazolium thiocyanate (EMIM-SCN) were successfully observed. Even though the Ps bubble size is smaller for EMIM-SCN, the oscillation frequency of the Ps bubble at 10°C above the melting temperatures was quite similar for the other room temperature ionic liquids. Hence, the Ps bubble oscillation is, probably, caused by the repulsive force initiated by the ionic structures in room temperature ionic liquids that can remain at 10-15°C above the melting temperatures.