Re: [Wien] Questions about imposing external magnetic field on no-magnetic system

2017-07-16 Thread Peter Blaha
Once more: A magnetic field influences the spin and orbital degrees of freedom. The spin effects can approximately be taken care of as described in the UG for NMR in metals. It leads to a trivial (or non-trivial if there is screening) Zeeman splitting. Since even a large field of 100 T is

Re: [Wien] Questions about imposing external magnetic field on no-magnetic system

2017-07-16 Thread Karel Vyborny
As for NMR in not-too-strong B-field, it may indeed not be necessary to consider the orbital effects of B. I am not an expert in NMR. What I had in mind is related to my quantum Hall effect background and could be explained e.g. with bulk GaAs as an example. For B=0, the conduction band of