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Approximate energies and thermal properties of a position-dependent mass charged particle under external magnetic fields

Authors :
Hossein Mehraban
Mahdi Eshghi
Sameer M. Ikhdair
Source :
Chinese Physics B. 26:060302
Publication Year :
2017
Publisher :
IOP Publishing, 2017.

Abstract

We solve the Schrödinger equation with a position-dependent mass (PDM) charged particle interacted via the superposition of the Morse-plus-Coulomb potentials and is under the influence of external magnetic and Aharonov–Bohm (AB) flux fields. The nonrelativistic bound state energies together with their wave functions are calculated for two spatially-dependent mass distribution functions. We also study the thermal quantities of such a system. Further, the canonical formalism is used to compute various thermodynamic variables for second choosing mass by using the Gibbs formalism. We give plots for energy states as a function of various physical parameters. The behavior of the internal energy, specific heat, and entropy as functions of temperature and mass density parameter in the inverse-square mass case for different values of magnetic field are shown.

Details

ISSN :
16741056
Volume :
26
Database :
OpenAIRE
Journal :
Chinese Physics B
Accession number :
edsair.doi...........ea22e30697127e756a7129d3cacafe96
Full Text :
https://doi.org/10.1088/1674-1056/26/6/060302