2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17077The quantum interference effects induced by the topological phase are studied analytically in biaxial antiferromagnets with an external magnetic field at an arbitrarily angle. This study provides a nontrivial generalization of the Kramers degeneracy for equivalent double-well system to coherently spin tunneling at ground states as well as low-lying excited states for antiferromagnetic system with asymmetric twin barriers. The spin-phase interference effects are found to depend on the orientation of the magnetic field distinctly.10 pages, 3 figuresMesoscale and Nanoscale PhysicsStatistical MechanicsPhase interference in antiferromagnetic quantum tunneling with an arbitrarily directed magnetic fieldtext