Energetics of undercooled liquid metals

R. N. Singh, R. P. Jaju

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The role of basic interactions (i.e. electron-electron, ion-ion and electron-ion) on the energetics of undercooled (T ≪ Tm) liquid metallic system has been investigated within the first-principle approach of pseudopotential perturbation theory and the Gibbs-Bogoliaubov variational method. Its application is made to Na and T-dependence of internal energies, interatomic pair potentials, entropies and heat capacities are obtained in the region T ≪ Tm. Various entropie contributions in the undercooled region decrease much faster than the enthalpic terms. Heat capacities calculated both from entropy and enthalpy terms increase with decreasing T in the undercooled region, and exhibit anomalous behaviour at a temperature which is interpreted as glass transition temperature.

Original languageEnglish
Pages (from-to)133-141
Number of pages9
JournalPhysica B: Condensed Matter
Volume240
Issue number1-2
Publication statusPublished - Sep 1 1997

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liquid metals
Liquid metals
Ions
Specific heat
Entropy
specific heat
entropy
Electron-electron interactions
ions
internal energy
glass transition temperature
pseudopotentials
Enthalpy
electron scattering
electrons
perturbation theory
enthalpy
Electrons
Liquids
liquids

Keywords

  • Thermodynamic properties
  • Undercooled liquid metals

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Energetics of undercooled liquid metals. / Singh, R. N.; Jaju, R. P.

In: Physica B: Condensed Matter, Vol. 240, No. 1-2, 01.09.1997, p. 133-141.

Research output: Contribution to journalArticle

Singh, RN & Jaju, RP 1997, 'Energetics of undercooled liquid metals', Physica B: Condensed Matter, vol. 240, no. 1-2, pp. 133-141.
Singh, R. N. ; Jaju, R. P. / Energetics of undercooled liquid metals. In: Physica B: Condensed Matter. 1997 ; Vol. 240, No. 1-2. pp. 133-141.
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