Quantum oscillations in confined and degenerate Fermi gases. II. The phase diagram and applications of half-vicinity model

Aydın A. , Sisman A.

PHYSICS LETTERS A, vol.382, no.27, pp.1813-1817, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 382 Issue: 27
  • Publication Date: 2018
  • Doi Number: 10.1016/j.physleta.2018.04.053
  • Title of Journal : PHYSICS LETTERS A
  • Page Numbers: pp.1813-1817


For part I see DOI: 10.1016/j.physleta.2018.02.006. Size and density dependent quantum oscillations appear in Fermi gases under strong confinement and degeneracy conditions. We provide a universal recipe that explicitly separates oscillatory regime from non-oscillatory (stationary) one. A phase diagram representing stationary and oscillatory regimes on degeneracy-confinement space is proposed. Analytical expressions of phase transition interfaces are derived. The critical point, which separates entirely stationary and oscillatory regions, is determined and its dependencies on aspect ratios are examined for anisometric domains. Accuracy of the half-vicinity model and the phase diagram are verified through the quantum oscillations in electronic heat capacity and its ratio to entropy. (C) 2018 Elsevier B.V. All rights reserved.