Compensated Ferrimagnetic Tetragonal Heusler Thin Films for Antiferromagnetic Spintronics

Fully compensated ferrimagnets with tetragonal crystal structure have the potential for large spin-polarization and strong out-of-plane magnetic anisotropy; hence, they are ideal candidates for high-density-memory applications. Tetragonal Heusler thin films with compensated magnetic state are realized by substitution of Pt in Mn_3−xPt_xGa. Furthermore, the bilayer formed from compensated/uncompensated Mn–Pt–Ga layers is utilized to accomplish exchange bias up to room temperature.

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