Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

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

Chinese Physics C> 2003, Vol. 27> Issue(4) : 332-336

Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

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

Abstract
HTML
Reference
Related

PDF

Abstract：
The properties of the spin polarized isospin symmetric nuclear matter and neutron matter as well as their equations of state are investigated by employing the Skyrme effective interaction with four sets of parameters SKM*, SⅢ, SLy230a and SLy230b. Whichever Skyrme parameter is used, the ferromagnetic phase transitions are predicted in both the isospin symmetric nuclear matter and neutron matter. Above the critical density, the polarized matter becomes more stable than the unpolarized one. Consequently such a phase transition is one of the possible explanations of the strong magnetic field in neutron stars. In addition the magnetic susceptibility χ is also evaluated and the ratio χ/χ_F is obtained as a function of the density. The existence of an infinite discontinuity confirms the occurrence of a ferromagnetic phase transition once more.

References

[1]

. Gold T .Nature.,1968,V218:731 2. Brownell Jr D J ,Callaway J. Nuovo Cimento.,1969,B60:169 3. Rice M J. Phys.Lett.,1969,A29:637 4. Silverstein S D .Phys.Rev.Lett.,1963,V23:139 5. Ostgaard E .Nucl.Phys.,1970,A154:2026. Pandharipande V R ,Garde V K ,Srivastava J V .Phys.Lett.,1972,B38:485 7. Clark J W .Phys.Rev.Lett.,1969,V23:1463 8. Pearson J M ,Saunier G .Phys.Rev.Lett.,1970,V24:325 9. Backmann S O ,Kallman C G .Phys.Lett.,1973,B43:263 10. Jackson A D ,Krotscheck E ,Meltzer D E et al.Nucl.Phys.,1982,A386:125 11. Vidana I, Polls A ,Ramos A .Phys.Rev.,2002,C65:035804 12. Chabanat E ,Bonche P ,Haensel P et al.Nucl.Phys.,1997,A627:710—746 13. GE LingXiao,ZHUO YiZhong,Norenberg W .Nucl.Phys.,1986,A459:7714. ZHUO YiZhong, HAN YinLu,WU XiZhen. Prog.Theor.Phys.,1998,V79:11015. Prakash M ,Bombaci I,Prakash M et al.Phys.Rep.,1997,V280:116. Heiselbeerg H ,Hjorth Jensen M .Phys.Rep.,2000,V328:237

[1]	XU Jun , CHEN Lie-Wen , LI Bao-An , MA Hong-Ru . Temperature Dependence of the Nuclear Symmetry Energy and Symmetry Free Energy. Chinese Physics C, 2006, 30(S2): 265-267.
[2]	LANG Xiao-Li , WU Shi-Shu . Influence of the Nucleon Struture on Nuclear Matter. Chinese Physics C, 2006, 30(S2): 224-226.
[3]	CHEN Wei . Thermal Property of Protoneutron Star Matter. Chinese Physics C, 2006, 30(2): 118-122.
[4]	ZUO Wei , CHEN Ji-Yan , LI Bao-An , LUO Pei-Yan , Lombardo U . Momentum and Density Dependence of Isospin Symmetry Potential in Asymmetric Nuclear Matter. Chinese Physics C, 2005, 29(9): 881-885.
[5]	WANG Li-Min , LI Jia-Rong . Dielectric Properties of Nuclear Matter with the ωNN Interaction at High Temperature. Chinese Physics C, 2004, 28(4): 382-386.
[6]	ZUO Wei , Lombardo U , SHEN Cai-Wan , LIU Jian-Ye , LI Jun-Qing . Equation of State of Spin-Polarized Nuclear Matter. Chinese Physics C, 2004, 28(3): 284-289.
[7]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅳ) Single-Particle Potential and Effective Mass. Chinese Physics C, 2003, 27(5): 416-420.
[8]	ZUO Wei , Lombardo U , SHEN Cai-Wan , LIU Jian-Ye , LI Jun-Qing . Equation of State of Spin-Polarized Neutron Metier. Chinese Physics C, 2003, 27(11): 999-1004.
[9]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅲ) HVH Theorem and Fermi Energy. Chinese Physics C, 2003, 27(1): 31-35.
[10]	LI Zeng-Hua , LU Guang-Cheng , ZUO Wei . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅶ) Proton and Neutron ¹S₀ Superfluidity in Neutron Star Matter. Chinese Physics C, 2003, 27(12): 1084-1088.
[11]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential. Chinese Physics C, 2003, 27(7): 585-589.
[12]	ZUO Wei , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence. Chinese Physics C, 2003, 27(10): 888-891.
[13]	LI Zeng-Hua , ZUO Wei , LIU Jian-Ye , GUO Wen-Jun . Properties of Spin Polarized Isospin Asymmetric Nuclear Matter. Chinese Physics C, 2003, 27(9): 789-793.
[14]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye . Properties of Isospin Asymmetric Nuclear Matterand Extended BHF Approach(Ⅰ) Isospin Dependent Extended BHF Approach. Chinese Physics C, 2002, 26(7): 703-711.
[15]	ZUO Wei , U.Lombardo , LIU Jian-Ye , LI Zeng-Hua , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended Brueckner-Hartree-Fock Approach (Ⅱ) Equation of State,Symmetry Energy and Three-Body Force Effects. Chinese Physics C, 2002, 26(12): 1238-1246.
[16]	LI Wen-Fei , ZHANG Feng-Shou , CHEN Lie-Wen . Study on Mass and Radius of Neutron Star Using Asymmetry Equation of State of Nuclear Matter. Chinese Physics C, 2001, 25(9): 877-883.
[17]	CUI Yun-Long , QIU Xi-Jun . THE PROPERTIES OF NUCLEAR MATTER AT LOW TEMPERATURE IN A POSSIBLE QUARK MECHANISM. Chinese Physics C, 1990, 14(6): 525-531.
[18]	ZHENG Guo-Tong , SU Ru-Keng . LIQUID-GAS PHASE TRANSITION OF SYMMETRIC NUCLEAR MATTER AND SGII-TYPE EFFECTIVE INTERACTIONS. Chinese Physics C, 1990, 14(4): 325-332.
[19]	SHEN QING-BIAO , TIAN YE , MA ZHONG-YU , ZHANG JING-SHANG , ZHUO YI-ZHONG . SEMI-MICROSCOPIC OPTICAL POTENTIAL CALCULATION USING NUCLEAR MATTER APPROACH II. ASYMMETRIC NUCLEAR MATTER. Chinese Physics C, 1982, 6(2): 185-197.
[20]	ZHANG JING-SHANG , TIAN YE , ZHUO YI-ZHONG . SEMI-MICROSCOPIC OPTICAL POTENTIAL CALCULATION BY THE NUCLEAR MATTER APPROACH——I. SYMMETRIC NUCLEAR MATTER. Chinese Physics C, 1982, 6(1): 91-103.

Access

Get Citation

LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter[J]. Chinese Physics C, 2003, 27(4): 332-336.

LI Zeng-Hua, ZUO Wei, LIU Jian-Ye and GUO Wen-Jun. Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter[J]. Chinese Physics C, 2003, 27(4): 332-336. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-04-23
Revised: 1900-01-01

Article Metric

Article Views(2780)
PDF Downloads(623)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

Corresponding author: LI Zeng-Hua,

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

Received Date: 2002-04-23

Accepted Date: 1900-01-01

Available Online: 2003-04-05

Abstract: The properties of the spin polarized isospin symmetric nuclear matter and neutron matter as well as their equations of state are investigated by employing the Skyrme effective interaction with four sets of parameters SKM*, SⅢ, SLy230a and SLy230b. Whichever Skyrme parameter is used, the ferromagnetic phase transitions are predicted in both the isospin symmetric nuclear matter and neutron matter. Above the critical density, the polarized matter becomes more stable than the unpolarized one. Consequently such a phase transition is one of the possible explanations of the strong magnetic field in neutron stars. In addition the magnetic susceptibility χ is also evaluated and the ratio χ/χ_F is obtained as a function of the density. The existence of an infinite discontinuity confirms the occurrence of a ferromagnetic phase transition once more.

HTML

Reference (1)

Properties of Spin Polarized Isospin Symmetric Nuclear Matter and Neutron Matter

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article