In the journal physical review B, there is a section devoted to "Inhomogenous, disordered and partially ordered systems".

 

Could someone please explain to me what each of them means?

Without knowing it: Phys Rev B is solid state physics (very ordered systems) and material sciences (any materials?). I'd guess that this section then is for what goes into the so-called "soft matter" direction, say polymer physics, glasses, maybe even fluids.

Without knowing it: Phys Rev B is solid state physics (very ordered systems) and material sciences (any materials?). I'd guess that this section then is for what goes into the so-called "soft matter" direction, say polymer physics, glasses, maybe even fluids.

 

So an ordered system is any system which is arranged in a crystal lattice and a non-ordered system is any system which is not a crystal lattice?

It's definitely not what I said. And I don't think it is true, either. I do not think there is a formal physical definition of "order" and "disorder" without at least some system-dependent context. What I said is that I think the section probably encompasses stuff like polymers which are arguably less ordered than a crystal lattice.

It also makes kind of sense to keep the section descriptions a bit vague. The journal's aim is to publish new discoveries, after all. And keep in mind that it was just a guess of mine.