Chirality Memory Stored in Magnetic Domain Walls in the Ferromagnetic State of MnP

N. Jiang, Y. Nii, H. Arisawa, Eiji Saitoh, J. Ohe, Y. Onose

Research output: Contribution to journalArticlepeer-review

Abstract

Chirality in a helimagnetic structure is determined by the sense of magnetic moment rotation. We found that the chiral information did not disappear even after the phase transition to the high-temperature ferromagnetic phase in a helimagnet MnP. The 2nd harmonic resistivity ρ2f, which reflects the breaking down of mirror symmetry, was found to be almost unchanged after heating the sample above the ferromagnetic transition temperature and cooling it back to the helimagnetic state. The application of a magnetic field along the easy axis in the ferromagnetic state quenched the chirality-induced ρ2f. This indicates that the chirality memory effect originated from the ferromagnetic domain walls.

Original languageEnglish
Article number177205
JournalPhysical review letters
Volume126
Issue number17
DOIs
Publication statusPublished - 2021 Apr 28

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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