Thermally Activated Motion of Sodium Cations in Insulating Parent Low-Silica X Zeolite

Denis Ar\v{c}on; Mutsuo Igarashi; Naohiro Watanabe; Peter Jegli\v{c}; Tadej Me\v{z}nar\v{s}i\v{c}; Takehito Nakano; Yasuo Nozue

arxiv: 1707.01689 · v1 · pith:KXIEJVQUnew · submitted 2017-07-06 · ❄️ cond-mat.str-el

Thermally Activated Motion of Sodium Cations in Insulating Parent Low-Silica X Zeolite

Mutsuo Igarashi , Peter Jegli\v{c} , Tadej Me\v{z}nar\v{s}i\v{c} , Takehito Nakano , Yasuo Nozue , Naohiro Watanabe , Denis Ar\v{c}on This is my paper

classification ❄️ cond-mat.str-el

keywords sodiumcationsmotioninsulatinglow-silicazeoliteactivatedactivation

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We report a $^{23}$Na spin-lattice relaxation rate, $T_1^{-1}$, in low-silica X zeolite. $T_1^{-1}$ follows multiple BPP-type behavior as a result of thermal motion of sodium cations in insulating material. The estimated lowest activation energy of 15~meV is much lower than 100~meV observed previously for sodium motion in heavily Na-loaded samples and is most likely attributed to short-distance jumps of sodium cations between sites within the same supercage.

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Thermally Activated Motion of Sodium Cations in Insulating Parent Low-Silica X Zeolite

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