Spin order and entropy in antiferromagnetic films subjected to magnetic fields
Spin order and entropy in antiferromagnetic films subjected to magnetic fields
Abstract Using systematic effective field theory, we explore the properties of antiferromagnetic films subjected to magnetic and staggered fields that are either mutually aligned or mutually orthogonal. We provide low-temperature series for the entropy density in either case up to two-loop order. Invoking staggered, uniform and sublattice magnetizations of the …