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Journal Articles

Spin torques and electrical voltage generation in antiferromagnetic nanotextures

Yamane, Yuta*; Ieda, Junichi

Magune, 13(5), p.235 - 241, 2018/10

Oral presentation

Spin transport in metallic antiferromagnetic textures; Interplay of inter-sublattice mixing and s-d exchange interaction

Ieda, Junichi; Yamane, Yuta*; Sinova, J.*

no journal, , 

Recently, antiferromagnetic (AFM) materials are generating more attention due to their potential to become a key player in technological applications. To understand spin transport in AFM metals, however, in addition to the s-d exchange interaction that plays a pivotal role in ferromagnetic-based spintronics, the sublattice degree of freedom should be taken into account. In this presentation we theoretically demonstrate electric voltage generation due to spinmotive forces originating from domain wall motion and magnetic resonance in antiferromagnets. This work suggests a new way to observe and explore the dynamics of antiferromagnetic textures by electrical means, an important aspect in the emerging field of antiferromagnetic spintronics. We also formulate spin-transfer torques in antiferromagnetic materials. Taking in the electron-magnetization exchange coupling and the inter-sublattice electron dynamic as model parameters, we examine the two limiting cases where either one of the two is dominant over another. Our work offers a framework for quantitative understanding of spin-transfer torques in different classes of antiferromagnetic materials.

Oral presentation

Theory of spin-transfer torques in antiferromagnetic textures

Ieda, Junichi; Yamane, Yuta*; Sinova, J.*

no journal, , 

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