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Magnon mediated spin Nernst effect in a collinear antiferromagnet
October 21, 20164:00 pm – 5:00 pm (CDT)

Magnon mediated spin Nernst effect in a collinear antiferromagnet


Vladimir Zyuzin (Texas A&M University)


A. Finkel'stein



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

We predict that a temperature gradient can induce a magnon-mediated spin Hall response (a response of transverse spin density current) in insulating collinearly ordered antiferromagnet with Dzyaloshinskii-Moriya interaction. To study the response we applied a linear response theory based on the Luttinger approach of the gravitational scalar potential. We then applied our theory to honeycomb lattice antiferromagnet with Dzyaloshinskii-Moriya interaction. We also identified the magnon edge modes in finite geometry of such system.

A discussion of spin Nernst effect in ordered ferromagnet with Dzyaloshinskii-Moriya interaction will be made. If time permits, magnetization dynamics driven responses (for example generation of heat current) of ordered magnets will be discussed.

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