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Influence of superfluidity on recombination reactions of H+T$$rightarrow$$HT and T+T$$rightarrow$$T$$_{2}$$ in $$^{3}$$He-$$^{4}$$He quantum media under saturated vapor pressure at 1.6 K

1.6K,ヘリウム-3,ヘリウム-4量子媒体中におけるH+T$$rightarrow$$HT, T+T$$rightarrow$$T$$_{2}$$再結合反応への超流動の影響

荒殿 保幸; 井口 一成; 奥野 健二*; 熊田 高之   

Aratono, Yasuyuki; Iguchi, Kazunari; Okuno, Kenji*; Kumada, Takayuki

ヘリウム-3,ヘリウム-4量子媒体中におけるH+T$$rightarrow$$HT,T+T$$rightarrow$$T$$_{2}$$再結合反応への超流動の影響を1.6Kで調べた。その結果、超流動,常流動の相転移点で反応が変化することを見いだした。また、反応の同位体効果が非常に大きいことから、H,Tバブル原子のトンネル反応機構を提案した。

An influence of superfluidity on recombination reactions of H+T$$rightarrow$$HT, T+T$$rightarrow$$T$$_{2}$$ in $$^{3}$$He-$$^{4}$$He quantum media was studied under saturated vapor pressure at 1.6 K. A change of reaction mechanism was observed at transition point from normalfluid to superfluid phase. Tunneling reaction mechanism by H and T bubble atoms was proposed on the basis of large isotope effect.

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パーセンタイル:12.11

分野:Chemistry, Physical

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