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періодичних видань НАН України
The effect of proton ordering in thermal conductivity of clathrate tetrahydrofuran hydrate
Репозиторій DSpace/Manakin
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The effect of proton ordering in thermal conductivity of clathrate tetrahydrofuran hydrate
Тема:
Низкоразмерные и неупорядоченные системы
Інший ID:
PACS 66.70.–f;63.20.–e;63.20.Pw;63.50.–x
Посилання:
The effect of proton ordering in thermal conductivity
of clathrate tetrahydrofuran hydrate
/ A.I. Krivchikov, O.O. Romantsova, O.A. Korolyuk // Физика низких температур. — 2008. — Т. 34, № 8. — С. 821–828. — Бібліогр.: 54 назв. — англ.
Підтримка:
The authors are indebted to Prof. D. Klug and
Dr. V. Konstantinov for helpful discussions.
Дата:
2008
Переглядів:
647
Завантажень:
473
Анотація:
The effect of proton ordering in tetrahydrofuran hydrate has been detected using a technique based on
measurement of thermal conductivity. The thermal conductivity of tetrahydrofuran hydrate was measured
by the steady-state potentiometric method in an interval of 2–150 K. Two regimes were selected to observe
the effect: (i) slow cooling of the hydrate sample and (ii) doping the hydrate with a small quantity of KOH alkali
to a concentration of 10⁻⁴. Proton ordering affects the temperature dependence of the thermal conductivity
changing its glass-like behavior to crystal-like below 150 K. The phonon maximum that appears in the
temperature dependence of the thermal conductivity at T = 17 K is attributed to the cooperative process of
local proton ordering stimulated by orientational and ionic defects.
