Nearly compensated ferrimagnetic behaviour and giant exchange bias of hexagonal Mn<sub>2</sub>PtAl: experimental and theoretical studies
Akhilesh Kumar Patel, S. Shanmukharao Samatham, A. V. Lukoyanov, P. D. Babu, К. Г. Суреш
Abstract
PtAl and Mn ions (occupying different sites) with a very small total magnetic moment. A giant exchange bias field of 2.73 kOe, at a temperature of 3 K and a cooling field of 70 kOe, has been estimated and is attributed to the unidirectional anisotropy associated with possible ferromagnetic clusters formed by the field cooling process in the ferrimagnetic matrix.
Topics & Concepts
FerrimagnetismCondensed matter physicsMagnetizationExchange biasFerromagnetismMaterials scienceMagnetic momentHysteresisMagnetic anisotropyMagnetic fieldPhysicsQuantum mechanicsMagnetic and transport properties of perovskites and related materialsHeusler alloys: electronic and magnetic propertiesMagnetic properties of thin films