2019/04/25 by A. Conca, Conca, Andres, Alessia Niesen +5
Materials Science · Physics and Astronomy · #Heusler alloys: electronic and magnetic properties #Magnetic Properties and Applications #Magnetic properties of thin films
paper · pdf · doi:10.48550/arxiv.1904.11247
We present a study of the dynamic magnetic properties of TiN-buffered\nepitaxial thin films of the Heusler alloy Fe1.5CoGe. Thickness series\nannealed at different temperatures are prepared and the magnetic damping is\nmeasured, a lowest value of \α=2.18\× 10-3 is obtained. The\nperpendicular magnetic anisotropy properties in Fe1.5CoGe/MgO are also\ncharacterized. The evolution of the interfacial perpendicular anisotropy\nconstant K\⊥ rm S with the annealing temperature is shown and\ncompared with the widely used CoFeB/MgO interface. A large volume contribution\nto the perpendicular anisotropy of (4.3\±0.5)\× 105 rm J/m3 is\nalso found, in contrast with vanishing bulk contribution in common Co- and\nFe-based Heusler alloys.\n