Kinetic arrest related to a first-order ferrimagnetic to antiferromagnetic transition in the Heusler compound Mn2PtGaReportar como inadecuado



 Kinetic arrest related to a first-order ferrimagnetic to antiferromagnetic transition in the Heusler compound Mn2PtGa


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We report a magnetization study of the Heusler compound Mn2PtGa that shows the existence of a magnetic-glass state. Mn2PtGa shows a first-order ferromagnetic FM-ferrimagnetic FI to antiferromagnetic AFM transition in contrast to the martensitic structural transition observed in several Heusler alloys. The kinetic arrest of this first-order FM FI to AFM transition leads to the observed magnetic-glass behavior. We show that the strength of the applied magnetic field, which is the primary parameter to induce the magnetic-glass state, is also responsible for the stability of the supercooled FM FI phase in time.



Autor: Ajaya K. Nayak; Michael Nicklas; Chandra Shekhar; Claudia Felser

Fuente: https://archive.org/







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