Densityfunctional theory in strong magnetic fields
Abstract
We formulate the currentdensityfunctional theory for systems in arbitrarily strong magnetic fields. A set of selfconsistent equations comparable to the KohnSham equations for ordinary densityfunctional theory is derived, and proved to be gauge invariant and to satisfy the continuity equation. We prove that the exchangecorrelation energy functional E_{xc[n},j_{p}] [n(r) is the density and j_{p}(r) is the ``paramagnetic'' current density] depends on the current via the combination ν(r)=∇×[j_{p}(r)/n(r)]. An explicit formula for E_{xc} is derived, which is local in ν(r).
 Publication:

Physical Review Letters
 Pub Date:
 November 1987
 DOI:
 10.1103/PhysRevLett.59.2360
 Bibcode:
 1987PhRvL..59.2360V
 Keywords:

 71.10.+x;
 71.45.Gm;
 75.20.g;
 Exchange correlation dielectric and magnetic response functions plasmons;
 Diamagnetism paramagnetism and superparamagnetism