Ground state Lanthanum compounds Magnetic moments Natural multilayers Noncollinear magnetism Antiferromagnetic materials Band structure Canting angles Collinear antiferromagnets Crystallization Electronic structure Electronic transport properties Giant magnetoresistance Intermetallics Large scale systems Layered structures Low temperature effects Magnetic materials Magnetism Magnetoresistance Neutron diffraction Optimization article calculation chemical structure density functional theory electronics energy ferromagnetic material ferromagnetism