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Giant magneto-thermal resistance effect in epitaxial film
Above-room-temperature giant thermal conductivity switching in spintronic multilayer
We show that an epitaxial multilayer film exhibits giant magnetic-field-induced modulation of the cross-plane thermal conductivity.
The magneto-thermal resistance ratio for the multilayer reaches 150% at room temperature, which is much larger than the previous record high.
The magnetic field-dependence of the thermal conductivity of the multilayer was observed to be about twice greater than that of the cross-plane electrical conductivity.
The observation of the giant magneto-thermal resistance effect clarifies a potential of spintronic multilayers as thermal switching devices.
Hiroyasu Nakayama, Bin Xu, Sotaro Iwamoto, Kaoru Yamamoto, Ryo Iguchi, Asuka Miura, Takamasa Hirai, Yoshio Miura, Yuya Sakuraba, Junichiro Shiomi, Ken-ichi Uchida
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