Diamagnetism versus paramagnetism of charged ideal spin-1/2 fermions in a harmonic trap under a uniform magnetic field
2019 ◽
Vol 33
(06)
◽
pp. 1950026
Keyword(s):
Magnetic properties of harmonically trapped charged ideal spin-1/2 fermions in a uniform magnetic field are studied. It is shown that the magnetism of charged spin-1/2 fermions can be explained by a competition between the diamagnetic and paramagnetic effects, where a variable spin factor is introduced to describe the strength of paramagnetic effect. As the spin factor increases, a crossover from diamagnetic region to paramagnetic region appears. Moreover, the critical values of spin factor are obtained at low-temperature and under weak magnetic field, respectively. Spin-1/2 fermions display distinct magnetic behaviors from spinless case.
2014 ◽
Vol 28
(26)
◽
pp. 1450206
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1991 ◽
Vol 05
(01n02)
◽
pp. 3-30
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Keyword(s):
1997 ◽
Vol 390
(1-3)
◽
pp. 47-55
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2017 ◽
Vol 510
◽
pp. 117-126
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1997 ◽
Vol 37
(5)
◽
pp. 417-429
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Keyword(s):