Calculation the thermodynamic parameters required for stability of roton

Authors

  • Nasser Ismail

Abstract

This work aims to search about the thermodynamic properties of phonons and rotons in Hellium II (thermodynamic potential, roton energy, particles number). It is noticed from the curves the energy gap depth in roton cell has a value of

Correspond to wave number . In addition, the curve of the ratio between normal component density ρn to the total density of liquid helium ρ as a function of temperature. The diagram illustrated the difference between  in the range (0.9 – 1.8)K.

 

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Published

2019-06-30

How to Cite

1.
Ismail N. Calculation the thermodynamic parameters required for stability of roton. TUJ-BA [Internet]. 2019Jun.30 [cited 2024Apr.19];41(3). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/8812

Issue

Vol. 41 No. 3 (2019): العلوم الأساسية

Section

Articles

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