It is known that some materials lose their permanent magnetic properties when they are heated above certain temperature known as Curie temperature or Curie point. As those materials are cooled down to lower temperatures they will contain no residual magnetic field.
After some given material with magnetic properties that has never been magnetized before is magnetized from H=0 & B=0 state, the quiescent point follows initial magnetization curve all the way up to saturation. After it is saturated, the quiescent point follows hysteresis loop curve. And after external magnetic field is removed, given material stays magnetized to some degree, known as remanence or retentivity of material. Now, if this same material is heated beyond Curie temperature and cooled down then this material is demagnetized and put into H=0 & B=0 state, right? And from there, the quiescent point follows initial magnetization curve as external magnetic field is applied to magnetize the given material, right?