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Abstract: Thermodynamics of a spin-1 Bose gas with ferromagnetic interactions areinvestigated via the mean-field theory. It is apparently shown in the specificheat curve that the system undergoes two phase transitions, the ferromagnetictransition and the Bose-Einstein condensation, with the Curie point above thecondensation temperature. Above the Curie point, the susceptibility fits theCurie-Weiss law perfectly. At a fixed temperature, the reciprocalsusceptibility is also in a good linear relationship with the ferromagneticinteraction.



Author: Chengjun Tao, Peilin Wang, Jihong Qin, Qiang Gu

Source: https://arxiv.org/







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