Spin dependent correlations in a homogeneous electron gas at finite temperature

Journal Article · Mon May 23 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947927· OSTI ID:22608699

Arora, Priya; Kumar, Krishan ^[1]

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1. S. D. College (Lahore), Ambala Cantt.-133001 (India)

We have studied theoretically the magnetic structure factor of a three-dimensional homogeneous electron gas at finite temperature. The spin density response function has been derived using the Singwi-Tosi-Land-Sjolander (STLS) theory that incorporates the correlation effects through spin anti-symmetric local field correction factor. The numerical results so obtained are compared against the recent path-integral Monte Carlo Simulation data of Brown et al. in the warm-dense regime for various temperature values. We find almost exact agreement at small temperature for different coupling parameter (r{sub s}) values. However, with increasing temperature and decreasing density, there has been observed noticeable disagreement with simulation results. This is attributed to the known failure of the STLS theory in dealing separately with the spin-resolved correlation functions.

• OSTI ID: 22608699
• Journal Information: AIP Conference Proceedings, Vol. 1731, Issue 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CORRECTIONS
CORRELATION FUNCTIONS
CORRELATIONS
DENSITY
ELECTRON GAS
ELECTRONS
FAILURES
MAGNETIC PROPERTIES
MONTE CARLO METHOD
RESPONSE FUNCTIONS
SPIN
STRUCTURE FACTORS
SYMMETRY
THREE-DIMENSIONAL CALCULATIONS