If diamagnetism is due to temperature particles, heating the material impart greater spin on these particles and its magnetism decreases as the orthogonal electric field manifest itself and the temperature field around the particles decreases.
Paramagnetism is due to orbital angular momenta of electrons, but the spin of the electron reduces its electrical property. A spinning electron behave like a particle temperature particle along the axis of spin. Such a spinning electron will produce less magnetic moment. An so, paramagnetism reduces with increasing temperature as electron spin increases with temperature.
In the graph above, at temperature beyond the Curie point for ferromagnetic material and the Neel point for anti-ferromagnetic material, the materials are paramagnetic. Magnetism that remains in the materials is due to orbiting electrons (not electron spin).
When diamagnetism adds to paramagnetism in a material we have ferromagnetism. As temperature increases temperature particle spin increases and diamagnetism decreases, eventually ferromagnetism is reduced to paramagnetism.
When diamagnetism cancels paramagnetism in a material we have anti-ferromagnetism. As temperature increases temperature particle spin increases and diamagnetism decreases. The material becomes more magnetic with paramagnetism. Eventually, diamagnetism is reduced to zero and the material is wholly paramagnetic, at the maxima, the Neel point.
This explanation places paramagnetism between ferromagnetism and anti-ferromagnetism, as experimental measurements show, without the need to introduce neighboring paramagnetic domains that add or cancel to explain ferromagnetism and anti-ferromagnetism. This explanation is different from common defintions of diamagnetism and paramagnetism.
At low temperature due to negative temperature particles, diamagentism increases with decreasing temperature (more negative temperature particles). Negative temperature particle is introduced new in this model. Diamagnetism at positive temperatures are due to positive temperature particles. Spin at high temperature reduces the temperature field of these particles and so reduces diamagnetism.
For both electrons and temperature particles, spin reduces their electric and temperature field respectively. In both cases, particle spin reduces magnetism. This is at odd with the notion that electron spin increases magnetic moment.
Furthermore, why should particle spin increase with temperature?
