Distinguishing antiferromagnetic spin sublattices via the spin Seebeck effect

Yongming Luo, Changjiang Liu, Hilal Saglam, Yi Li, Wei Zhang, Steven S.L. Zhang, John E. Pearson, Brandon Fisher, Tiejun Zhou, Anand Bhattacharya, Axel Hoffmann

Research output: Contribution to journalArticlepeer-review

Abstract

We measured spin Seebeck signals at the top and bottom surfaces of an antiferromagnetic Cr2O3 film, using a Pt/Cr2O3/Pt trilayer. Our experimental data, combined with micromagnetic simulations, clearly demonstrate that the uncompensated sublattice at the top and bottom surfaces plays a decisive role in determining the symmetry of the spin Seebeck signals, providing fundamental insight for understanding the generation of spin Seebeck signal in antiferromagnetic materials.

Original languageEnglish (US)
Article numberL020401
JournalPhysical Review B
Volume103
Issue number2
DOIs
StatePublished - Jan 6 2021

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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