Design scheme of new tetragonal Heusler compounds for spin-transfer torque applications and its experimental realization.

Winterlik, Jürgen; Chadov, Stanislav; Gupta, Arunava; Alijani, Vajiheh; Gasi, Teuta; Filsinger, Kai; Balke, Benjamin; Fecher, Gerhard H et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

Band Jahn-Teller type structural instabilities of cubic Mn(2)YZ Heusler compounds causing tetragonal distortions can be predicted by ab initio band-structure calculations. This allows for identification of new Heusler materials with tunable magnetic and structural properties that can satisfy the demands for spintronic applications, such as in spin-transfer torque-based devices.