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MA: Fachverband Magnetismus

MA 23: Functional Antiferromagnetism

MA 23.11: Vortrag

Dienstag, 17. März 2020, 12:15–12:30, HSZ 401

Resistivity in Antiferromagnetic System with Domain Wall — •Jun-Hui Zheng, Alireza Quaiumzadeh, and Arne Brataas — Center for Quantum Spintronics, Department of Physics, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway

The ballistic and diffuse transport through a ferromagnetic domain wall (DW) has been well studied for decades. In some cases, the DW serves as an effective barrier potential, increasing the resistance. Antiferromagnetic systems have a more complicated magnetic structure and their DWs have more exotic properties, which has attracted theoretical and experimental attention. Here we theoretically study the resistance due to the antiferromagnetic domain wall scattering by using the adiabatic approximation. Depending on the types of antiferromagnetism, the resistance shows rather different behaviors.