Manipulation and detection of magnetic states with collinear spin-split antiferromagnets

我们将通过实验证明，一类具有自旋分裂电子能带和消失磁化的新型反铁磁体可以补充或取代铁磁体，用于自旋电子器件中磁态的检测和操纵。这个项目是基于我们最近发现的由这些自旋分裂共线反铁磁体产生的强极化保守自旋电流。我们将证明我们的反铁磁体可以促进突出的自旋电子功能，这些功能以前被认为是铁磁体的独有优点。同时，反铁磁体的引入将提高器件的鲁棒性并降低多层材料的复杂性。我们还将证明半金属的半导体自旋分裂反铁磁体开辟了高效热电能量收集和磁成像的前景。我们的国际团队拥有成功合作的过往记录，团队内部的互补专业知识与项目目标完美匹配。该项目的目的是演示电和热电操作，并利用共线自旋分裂反铁磁体通过自旋转移扭矩和巨磁电阻检测磁态，以及利用反常能思特效应成像反铁磁畴。

We will experimentally demonstrate that a new class of antiferromagnets with spin-split electronic energy bands and vanishing magnetization can complement or replace ferromagnets in the detection and manipulation of magnetic states in spintronic devices. The project is based on our recent discovery of strongly polarized conserved spin-currents generated by these spin-split collinear antiferromagnets. We will demonstrate that our antiferromagnets can facilitate the prominent spintronic functionalities which were earlier thought to be exclusive merits of ferromagnets. Simultaneously, the introduction of antiferromagnets will increase robustness and decrease multilayer-material complexity of the devices. We will also show that semimetallic of semiconducting spin-split antiferromagnets open a prospect of efficient thermo-electric energy harvesting and magnetic imaging. Our international team has a previous track record of successful collaborations and the complementary expertise within the team ideally matches the objectives of the project. The aim of the project is the demonstration of electrical and thermoelectric manipulation and detection of magnetic states by spin transfer torque and giant magnetoresistance using collinear spin-split antiferromagnets and the imaging of antiferromagnetic domains by the anomalous Nernst effect.