Paramagnetism of hot magnetic neutron gas

Anand, J. D. ; Bhattacharjee, P. ; Biswas, S. N. ; Hasan, M. (1981) Paramagnetism of hot magnetic neutron gas Physical Review D, 23 (2). pp. 316-322. ISSN 0556-2821

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Spontaneous magnetization and susceptibility of a noninteracting system of chargeless relativistic spin-½ magnetic moments in the presence of an intense magnetic field are calculated. We find that spontaneous magnetization is unlikely to occur and that the susceptibility parameter (X) obeys Curie-type behavior at high temperature (T), namely X=(1/2)(N/kT)μN2, where N is the number density, k is the Boltzmann constant, and μN is the anomalous magnetic moment of the spin-½ object. These results are of direct interest to a neutron star where neutrons are considered to be the predominant constituent of matter and on its surface a magnetic field of strength ~ 1013 G is present. We also obtain the temperature-dependent corrections to the energy and number density of an ultradegenerate cold neutron star, which are necessary in connection with the equation of state of a hot neutron star.

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Source:Copyright of this article belongs to American Physical Society.
ID Code:26207
Deposited On:06 Dec 2010 12:55
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