[11p-S302-1~8] 理論と実験の協奏：スピントロニクス材料・現象・素子

▲ [11p-S302-3] Magnons versus ferrons

〇Gerrit Ernst-Wilhelm Bauer¹、Ping Tang¹、Ryo Iguchi²、Kenichi Uchida^2,1 (1.Tohoku University、2.NIMS)

キーワード：ferromagnet, ferroelectric

The spontaneous order of electric and magnet dipoles in ferroelectrics and ferromagnets even at high temperatures is both fascinating and useful. Spintronics studies the transport of magnetic order in the form of spin currents, but the polarization current of the ferroelectric order has escaped attention. We present a theory for heat and polarization transport in ferroelectric devices with parameters derived from a one-dimensional phonon model. We predict polarization currents that can be observed via thermovoltages, a Peltier effect, and stray magnetic fields.