You will have to look into the magneto-resistivity and the magneto-resistance oscillations as function of 1/B. On top of this, by modulating the system by a periodic potential, with period smaller than the mean-free path, there are so-called Weiss oscillations to be observed. I attach links to three relevant publications here below (this is by no means an exhaustive set of references).

http://iopscience.iop.org/0295-5075/8/2/012

http://journals.aps.org/prb/abstract/10.1103/PhysRevB.58.12986

http://journals.aps.org/prb/abstract/10.1103/PhysRevB.75.125429

Thanks! B - is not a real mag. field. In the case of pseudo-Landau we have an effective field acting as a real. So we can't vary it directly. It's a case of strained graphene or topological insulator. It occurs only with Dirac fermion when we put into the system a deformation potential, as I see. As far as pseudo-magnetic field has gigantic value we can't apply additional real magnetic field for p.Landau levels to change significantly...

I didn't say that you had a real magnetic field! No matter what brings about the pseudo-Landau localised phase, there should be signatures of this phase in the transport coefficients of the system. While you may not be able to vary the fictitious magnetic field in your system (see later), you can still carry out transport measurements and for this possibly apply an external magnetic field. Perhaps you can also do things by putting the sample in a pressure cell and see how transport coefficients change under pressure (applied pressure should necessarily change the magnitude of the fictitious magnetic field).