Thermodynamics of a Bose-Einstein Condensate with Free Magnetization
Thermodynamics of a Bose-Einstein Condensate with Free Magnetization
We study thermodynamic properties of a gas of spin $3^{52}\mathrm{Cr}$ atoms across Bose-Einstein condensation. Magnetization is free, due to dipole-dipole interactions. We show that the critical temperature for condensation is lowered at extremely low magnetic fields, when the spin degree of freedom is thermally activated. The depolarized gas condenses in …