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arXiv · 2103.03694

Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography

Yuta Kainuma·Ryo Iguchi·Dwi Prananto·Vitaliy I. Vasyuchka·Burkard Hillebrands·Toshu An·Ken-ichi Uchida
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Abstract

Lock-in thermography measurements were performed to reveal heat source distribution induced by the unidirectional spin-wave heat conveyer effect (USHCE) of magnetostatic surface spin waves. When the magnetostatic surface spin waves are excited in an yttrium iron garnet slab, the lock-in thermography images show spatially biased sharp and complicated heating patterns, indicating the importance of edge spin-wave dynamics for USHCE. The accessibility to the local heat emission properties allows us to clarify a capability of remote heating realized by USHCE; it can transfer energy for heating even through a macro-scale air gap between two magnetic materials owing to the long-range dipole-dipole coupling.

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Yuta Kainuma, Ryo Iguchi, Dwi Prananto, Vitaliy I. Vasyuchka, Burkard Hillebrands, Toshu An, Ken-ichi Uchida. 2021-03-05. Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography. https://doi.org/10.1063/5.0049491

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