| Autor: |
Bordbar, Gholam Hossein, Rastkhadiv, Mohammad Amin, Poostforush, Ahmad |
| Zdroj: |
Journal of the Physical Society of Japan; 7/15/2023, Vol. 92 Issue 7, p1-7, 7p |
| Abstrakt: |
Our recent works on quasi-one dimensional and quasi-two dimensional fluid 3He persuaded us to investigate a probable liquid–gas phase transition for the two dimensional fluid 3He on an adsorbent substrate at finite temperature. For this purpose, we have considered a rippled graphene with a sine functional form. Here, the system thermodynamic functions have been computed by a variational approach. Our calculations for the equation of state demonstrate a liquid–gas second-order phase transitions at \(T_{\text{c}} \simeq 0.4\) K, with no external pressure, while the bulk fluid 3He requires extremely high pressure condition for a liquid–gas phase transition. Some response functions such as the compressibility and specific heat have been computed near the critical point where their divergence behaviors justify the second-order phase transition. This critical behavior of two dimensional fluid 3He on graphene disappears by ignoring the periodic ripples of substrate which shows the important role of ripples. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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