Article ID Journal Published Year Pages File Type
5103482 Physica A: Statistical Mechanics and its Applications 2017 32 Pages PDF
Abstract
The chemical potential of the two-site Hubbard cluster (pair) embedded in the external electric and magnetic fields is studied by exact diagonalization of the Hamiltonian. The formalism of the grand canonical ensemble is adopted. The influence of temperature, Hubbard on-site Coulombic energy U and electron concentration on the chemical potential is investigated and illustrated in figures. In particular, a discontinuous behaviour of the chemical potential (or electron concentration) in the ground state is discussed.
Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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