Electric-Field Manipulation of Magnetic Chirality in a Homo-Ferro-Rotational Helimagnet

Document Type

Article

Publication Date

9-4-2024

Abstract

Ferro-rotational (FR) materials, renowned for their distinctive material functionalities, present challenges in the growth of homo-FR crystals (i.e., single FR domain). This study explores a cost-effective approach to growing homo-FR helimagnetic RbFe(SO4)2 (RFSO) crystals by lowering the crystal growth temperature below the TFR threshold using the high-pressure hydrothermal method. Through polarized neutron diffraction experiments, it is observed that nearly 86% of RFSO crystals consist of a homo-FR domain. Notably, RFSO displays remarkable stability in the FR phase, with an exceptionally high TFR of ≈573 K. Furthermore, RFSO exhibits a chiral helical magnetic structure with switchable ferroelectric polarization below 4 K. Importantly, external electric fields can induce a single magnetic domain state and manipulate its magnetic chirality. The findings suggest that the search for new FR magnets with outstanding material properties should consider magnetic sulfates as promising candidates.

Identifier

85197393673 (Scopus)

Publication Title

Advanced Science

External Full Text Location

https://doi.org/10.1002/advs.202402048

e-ISSN

21983844

PubMed ID

38961641

Issue

33

Volume

11

Grant

FA9550‐21‐1‐0065

Fund Ref

Division of Chemistry

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