Properties of Spin Polarized Isospin Asymmetric Nuclear Matter

LI Zeng-Hua; ZUO Wei; LIU Jian-Ye; GUO Wen-Jun

Chinese Physics C> 2003, Vol. 27> Issue(9) : 789-793

Properties of Spin Polarized Isospin Asymmetric Nuclear Matter

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
In this paper, we calculate the properties of the spin polarized isospin asymmetric nuclear matter by employing the Skyrme effective interaction with two sets of parameters SKM * and SⅢ, giving the equation of the state and the radio det(1/χ)det(1/χ_F) which is shown as a function of the density for several values of the asymmetry parameter β. It is shown within the Skyrme-Hartree-Fock framework that there is the ferromagnetic phase transition in the isospin asymmetric nuclear matter at some density, above which the nuclear matter becomes stable against spin fluctuation, and the critical density for the ferromagnetic transition decreases with increasing the asymmetry parameter. In addition, we also compare the phenomenological Skyrme model with microcosmic BHF (Brueckner-Hartree-Fock) theory with respect to the phase transition.

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LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Asymmetric Nuclear Matter[J]. Chinese Physics C, 2003, 27(9): 789-793.

LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Asymmetric Nuclear Matter[J]. Chinese Physics C, 2003, 27(9): 789-793. shu

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Received: 2002-12-10
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Properties of Spin Polarized Isospin Asymmetric Nuclear Matter

Corresponding author: LI Zeng-Hua,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2002-12-10

Accepted Date: 1900-01-01

Available Online: 2003-09-05

Abstract: In this paper, we calculate the properties of the spin polarized isospin asymmetric nuclear matter by employing the Skyrme effective interaction with two sets of parameters SKM * and SⅢ, giving the equation of the state and the radio det(1/χ)det(1/χ_F) which is shown as a function of the density for several values of the asymmetry parameter β. It is shown within the Skyrme-Hartree-Fock framework that there is the ferromagnetic phase transition in the isospin asymmetric nuclear matter at some density, above which the nuclear matter becomes stable against spin fluctuation, and the critical density for the ferromagnetic transition decreases with increasing the asymmetry parameter. In addition, we also compare the phenomenological Skyrme model with microcosmic BHF (Brueckner-Hartree-Fock) theory with respect to the phase transition.

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Properties of Spin Polarized Isospin Asymmetric Nuclear Matter

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