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Observation of nonlocal ferron-drag thermoelectricity
Takuma Itoh, Takamasa Hirai, Ping Tang +8
The Peltier effect induces a heat current when a charge current passes through a conductor. Since a charge current is conserved at the junction between two different conductors, th…
Nonlocal Drag Thermoelectricity Generated by Ferroelectric Heterostructures
Ping Tang, Ken-ichi Uchida, Gerrit E. W. Bauer
The \textquotedblleft ferron\textquotedblright\ excitations of the electric-dipolar order carry energy as well as electric dipoles. Here we predict a nonlocal ferron drag effect in…
Spin Peltier effect and its length scale in Pt/YIG system at high temperatures
Atsushi Takahagi, Takamasa Hirai, Ryo Iguchi +3
The temperature and yttrium-iron-garnet (YIG) thickness dependences of the spin Peltier effect (SPE) have been investigated using a Pt/YIG junction system at temperatures ranging f…
Excitations of the ferroelectric order
Ping Tang, Ryo Iguchi, Ken-ichi Uchida +1
We identify the bosonic excitations in ferroelectrics that carry electric dipoles from the phenomenological Landau-Ginzburg-Devonshire theory. The "ferron" quasi-particles emerge f…
Magnonics vs. Ferronics
Gerrit E. W. Bauer, Ping Tang, Ryo Iguchi +1
Magnons are the elementary excitations of the magnetic order that carry spin, momentum, and energy. Here we compare the magnon with the ferron, i.e. the elementary excitation of th…
The Ferroelectric Point Contact
Ping Tang, Ryo Iguchi, Ken-ichi Uchida +1
We formulate a scattering theory of polarization and heat transport through a ballistic ferroelectric point contact. We predict a polarization current under either an electric fiel…