Spin Seebeck effect in a simple ferromagnet near Tc: A Ginzburg-Landau approach

Abstract

A time-dependent Ginzburg-Landau theory is used to examine the longitudinal spin Seebeck effect in a simple ferromagnet in the vicinity of the Curie temperature Tc. It is shown analytically that the spin Seebeck effect is proportional to the magnetization near Tc, whose result is in line with the previous numerical finding. It is argued that the present result can be tested experimentally using a simple magnetic system such as EuO/Pt or EuS/Pt.

References in corpus (21)

• Spin Caloritronics
• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Theory of magnon-driven spin Seebeck effect
• Theory of the Spin Seebeck Effect
• Antiferromagnetic spin Seebeck Effect
• Thermal generation of spin current in an antiferromagnet
• Linear-response theory of spin Seebeck effect in ferromagnetic insulators
• Determination of the origin of the spin Seebeck effect - bulk vs. interface effects
• Spin convertance at magnetic interfaces
• Phonon driven spin distribution due to the spin-Seebeck effect
• Thermal spin dynamics of yttrium iron garnet
• Gigantic enhancement of spin Seebeck effect by phonon drag
• Enhanced DC Spin Pumping into a Fluctuating Ferromagnet near Tc
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
• Observation of huge thermal spin currents in magnetic multilayers
• Picosecond spin Seebeck effect
• Influence of yttrium iron garnet thickness and heater opacity on the nonlocal transport of electrically and thermally excited magnons
• Concomitant enhancement of longitudinal spin Seebeck effect with thermal conductivity
• Observation of spin Seebeck contribution to the transverse thermopower in Ni-Pt and MnBi-Au bulk nanocomposites
• Spin Seebeck effect at microwave frequencies

Cited by in corpus (9)

• Temperature dependence of the Spin Seebeck effect in a mixed valent manganite
• Spin Seebeck effect in paramagnets and antiferromagnets at elevated temperatures
• Role of spin mixing conductance in determining thermal spin pumping near the ferromagnetic phase transition in EuO_{1-x} and La2NiMnO6
• Magnon currents excited by the spin Seebeck effect in ferromagnetic EuS thin films
• Ginzburg-Landau action and polarization current in an excitonic insulator model of electronic ferroelectricity
• Tunable Spin Seebeck Diode with Magnonic Spin Tunneling Junction
• Theory of the spin Seebeck effect influenced by crystal-field excitations in Tb${}_3$Fe${}_5$O${}_{12}$
• Spin Seebeck effect in two-sublattice ferrimagnets in the vicinity of $T_{\mathrm{C}}$
• Ginzburg-Landau theory of spin pumping through an antiferromagnetic layer near the Néel temperature