This information is part of the Modelica Standard Library maintained by the Modelica Association.
Since magnetic material properties like reluctance and permeance often are anisotropic resp. salient, a special operator instead of multiplication (compare: tensor vs. vector) is required. Modelica.Magnetic.FundamentalWave uses a special record Salient which is only valid in the rotor-fixed coordinate system.
Note: To avoid confusion, no magnetic material properties should be defined as Complex units.