Temperature profile of nanospintronic device analyzed by spin-dependent Seebeck effect

Md Kamruzzaman, Shaojie Hu, Kohei Ohnishi, Takashi Kimura

Research output: Contribution to journalArticlepeer-review


The heat transport in a laterally configured nano-spintronic device, including a magnetic multi-layered nanowire has been investigated by detecting the second harmonic voltages. We show that the magnetic-field dependence of the second harmonic voltage in the multi-layered wire shows a clear spin-valve-like effect with the magnitude larger than the electrical spin valve effect. The second harmonic signal with its probe configuration dependence is found to be quantitatively explained by the spin-dependent Seebeck effect with a significant heat flow from the substrate. This demonstration paves the way for the precise analysis of the heat flow in nano-structured electronic devices.

Original languageEnglish
Article number073004
JournalApplied Physics Express
Issue number7
Publication statusPublished - Jul 2021

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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