Аналітичний розрахунок критичної температури та оцінка величини критичної області для моделі плину

Автор(и)

  • I.V. Pylyuk Institute for Condensed Matter Physics, Nat. Acad. of Sci. of Ukraine
  • M.P. Kozlovskii Institute for Condensed Matter Physics, Nat. Acad. of Sci. of Ukraine
  • O.A. Dobush Institute for Condensed Matter Physics, Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe68.9.601

Ключові слова:

комiркова модель плину, потенцiал взаємодiї Морзе, велика статистична сума, рекурентнi спiввiдношення, критична температура, критична область

Анотація

Розроблено аналiтичну процедуру розрахунку критичної температури та оцiнки розмiру критичної областi для комiркової моделi плину. Нашi числовi розрахунки проiлюстровано на прикладi параметрiв потенцiалу Морзе, що характеризують лужнi метали (натрiй i калiй). Критичнi температури, знайденi для рiдких натрiю та калiю як розв’язки отриманого квадратного рiвняння, узгоджуються з експериментальними даними. Виходячи з умови iснування критичного режиму, одержано вираз для вiдносної температури, що визначає величину критичної областi. У випадках натрiю i калiю значення цiєї температури становить кiлька сотих.

Посилання

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Опубліковано

2023-10-20

Як цитувати

Pylyuk, I., Kozlovskii, M., & Dobush, O. (2023). Аналітичний розрахунок критичної температури та оцінка величини критичної області для моделі плину. Український фізичний журнал, 68(9), 601. https://doi.org/10.15407/ujpe68.9.601

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Фізика рідин та рідинних систем, біофізика і медична фізика