Magnetization reversal, asymmetry, and role of uncompensated spins in perpendicular exchange coupled systems - Camarero, Julio (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada) ; Miguel, J. (University of Amsterdam. Van der Waals-Zeeman Institute) ; Goedkoop, J. B. (University of Amsterdam. Van der Waals-Zeeman Institute) ; Vogel, J. (Laboratoire Louis Neel (Grenoble, França)) ; Romanens, F. (Laboratoire Louis Neel (Grenoble, França)) ; Pizzini, S. (Laboratoire Louis Neel (Grenoble, França)) ; Garcia, F. (SPINTEC (Spin Electronics Research)) ; Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Brookes, N. B. (European Synchrotron Radiation Facility) ; American Physical Society