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Magnonic black holes
A. Roldán-Molina, A. S. Nunez, R. A. Duine
We show that the interaction between spin-polarized current and magnetization dynamics can be used to implement black-hole and white-hole horizons for magnons - the quanta of oscil…
Local thermomagnonic torques in two-fluid spin dynamics
Benedetta Flebus, Pramey Upadhyaya, Rembert A. Duine +1
We develop a general phenomenology describing the interplay between coherent and incoherent dynamics in ferromagnetic insulators. Using the Onsager reciprocity and Neumann's princi…
Influence of yttrium iron garnet thickness and heater opacity on the nonlocal transport of electrically and thermally excited magnons
Juan Shan, Ludo J. Cornelissen, Nynke Vlietstra +4
We studied the nonlocal transport behavior of both electrically and thermally excited magnons in yttrium iron garnet (YIG) as a function of its thickness. For electrically injected…
Magnon Polarons in the Spin Seebeck Effect
Takashi Kikkawa, Ka Shen, Benedetta Flebus +5
Sharp structures in magnetic field-dependent spin Seebeck effect (SSE) voltages of Pt/YFeO (YIG) at low temperatures are attributed to the magnon-phonon interact…
Landau-Lifshitz theory of the magnon-drag thermopower
Benedetta Flebus, Rembert A. Duine, Yaroslav Tserkovnyak
Metallic ferromagnets subjected to a temperature gradient exhibit a magnonic drag of the electric current. We address this problem by solving a stochastic Landau-Lifshitz equation…
Finite-size scaling at infinite-order phase transitions
Rick Keesman, Jules Lamers, R. A. Duine +1
For systems with infinite-order phase transitions, in which an order parameter smoothly becomes nonzero, a new observable for finite-size scaling analysis is suggested. By construc…