Charge-current angle and frequency dependences of the spin Peltier effect induced by the spin Hall effect

Ryo Iguchi, Ken Ichi Uchida

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The spin Peltier effect (SPE) induced by the spin Hall effect has been investigated in Pt/yttrium-iron-garnet (YIG) junctions by the lock-in thermography technique. First, we propose and demonstrate a new method enabling systematic measurements of the charge-current angle dependence of spin-caloritronic and thermoelectric phenomena, confirming the symmetry of the SPE. Then, to investigate the temporal response of the SPE, we measured the charge-current frequency dependence of the spin-current-induced temperature modulation in a wide frequency range. The SPE signals are found to be almost independent of the frequency up to 100 Hz although the Joule-heating signals in the Pt layer are strongly dependent on the frequency, indicating that the spin-current-induced temperature modulation reaches the steady state in a much shorter time than the conventional heating effects. The experimental methods and results reported here will be useful for clarifying mechanisms and behaviors of spin-caloritronic and thermoelectric phenomena.

Original languageEnglish
Article number0902B6
JournalJapanese journal of applied physics
Volume57
Issue number9
DOIs
Publication statusPublished - 2018 Sep

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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