The total energy of Heisenberg ferromagnetic systems | Zendy

HuaiYu Wang | Zendy; Xia Qing | Zendy

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The total energy of Heisenberg ferromagnetic systems

Author(s) -

HuaiYu Wang,

Xia Qing

Publication year - 2007

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.56.5466

Subject(s) - ferromagnetism , physics , function (biology) , energy (signal processing) , total energy , spin (aerodynamics) , correlation function (quantum field theory) , heisenberg model , quantum mechanics , condensed matter physics , psychology , evolutionary biology , dielectric , displacement (psychology) , psychotherapist , biology , thermodynamics

The total energy of the Heisenberg ferromagnetic system is calculated by the many-body Green's function method under random phase approximation when the correlation function 〈S+S-〉 is considered. A general expression of the total energy universally applicable to any spin quantum number S is obtained. Numerical results are computed. The energy is lower than the case when the correlation function is not included.

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