Unusual Field Dependence of Anomalous Hall Effect in Ta/TbFeCo

Abstract

Experimental studies of anomalous Hall effect are performed for thin filmed Ta/TbFeCo in a wide range of temperatures and magnetic fields up to 3 T. While far from the compensation temperature (TM=277 K) the field dependence has a conventional shape of a single hysteresis loop, just below the compensation point the dependence is anomalous having the shape of a triple hysteresis. To understand this behavior, we experimentally reveal the magnetic phase diagram and theoretically analyze it in terms of spin-reorientation phase transitions. We show that one should expect anomalous hysteresis loops below the compensation point if in the vicinity of it the magnetic anisotropy is dominated by FeCo sublattice due to interaction with Ta.

9 pages, 6 figures

References in corpus (6)

• Anomalous Hall effect
• Electrical signature of individual magnetic skyrmions in multilayered systems
• Sub-diffraction sub-100 ps all-optical magnetic switching by passive wavefront shaping
• H-T Phase Diagram of Rare-Earth -- Transition Metal Alloy in the Vicinity of the Compensation Point
• High Field Anomalies of Equilibrium and Ultrafast Magnetism in Rare-Earth-Transition Metal Ferrimagnets
• Colossal enhancement of spin-chirality-related Hall effect by thermal fluctuation

Cited by in corpus (5)

• Spin-flop led peculiar behavior of temperature-dependent anomalous Hall effect in Hf/Gd-Fe-Co
• Domain wall dynamics of ferrimagnets induced by spin-current near the angular momentum compensation temperature
• Giant coercivity, resistivity upturn, and anomalous Hall effect in ferrimagnetic FeTb
• Sense current dependent coercivity and magnetization relaxation in Gd-Fe-Co Hall bar
• Phase transitions in rare-earth ferrimagnets with surface anisotropy near the magnetization compensation point