A rigorous approach to the magnetic response in disordered systems
  This paper is a part of an ongoing study on the diamagnetic behavior of a 3-dimensional quantum gas of non-interacting charged particles subjected to an external uniform magnetic field together with a random electric potential. We prove the existence of an almost-sure non-random thermodynamic limit for the grand-canonical pressure, magnetization and zero- field orbital magnetic susceptibility. We also give an explicit formulation of these thermodynamic limits. Our results cover a wide class of physically relevant random potentials which model not only crystalline disordered solids, but also amorphous solids. 
Philippe Briet (CPT), Baptiste Savoie (CPT)
math-ph cond-mat.quant-gas cond-mat.stat-mech math.MP