Multiferroicity and phase diagram of ferro-rotational magnet RbFe(SO4)2

Junjie Yang; Dimuthu Obeysekera; William Ratcliff; Lu Li; Sabine N. Neal; Janice L. Musfeldt; Shinichiro Yano

doi:10.1088/1361-648X/adc064

Multiferroicity and phase diagram of ferro-rotational magnet RbFe(SO₄)₂

Junjie Yang, Dimuthu Obeysekera, William Ratcliff, Lu Li, Sabine N. Neal, Janice L. Musfeldt, Shinichiro Yano

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Ferro-rotational magnet RbFe(SO₄)₂ has attracted attention for its stable ferro-rotational phase and electric-field-controlled magnetic chirality. This work presents the multiferroic properties and H-T phase diagram of RbFe(SO₄)₂, which have been underexplored. Our measurements of magnetic susceptibility, ferroelectric polarization, and dielectric constant under various magnetic fields reveal four distinct phases: (I) a ferroelectric and helical magnetic phase below 4 K and 6 T, (II) a paraelectric and collinear magnetic phase below 4 K and above 6 T, (III) a paraelectric and non-collinear magnetic phase below 4 K and above 9 T, and (IV) a paraelectric and paramagnetic above 4 K. This study clarifies the multiferroic behavior and H-T phase diagram of RbFe(SO₄)₂, providing valuable insights into ferro-rotational magnets.

Original language	English (US)
Article number	175701
Journal	Journal of Physics Condensed Matter
Volume	37
Issue number	17
DOIs	https://doi.org/10.1088/1361-648X/adc064
State	Published - Apr 28 2025

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

Keywords

ferro-rotation
multiferroic
phase diagram
polarization

Access to Document

10.1088/1361-648X/adc064

Cite this

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title = "Multiferroicity and phase diagram of ferro-rotational magnet RbFe(SO4)2",

abstract = "Ferro-rotational magnet RbFe(SO4)2 has attracted attention for its stable ferro-rotational phase and electric-field-controlled magnetic chirality. This work presents the multiferroic properties and H-T phase diagram of RbFe(SO4)2, which have been underexplored. Our measurements of magnetic susceptibility, ferroelectric polarization, and dielectric constant under various magnetic fields reveal four distinct phases: (I) a ferroelectric and helical magnetic phase below 4 K and 6 T, (II) a paraelectric and collinear magnetic phase below 4 K and above 6 T, (III) a paraelectric and non-collinear magnetic phase below 4 K and above 9 T, and (IV) a paraelectric and paramagnetic above 4 K. This study clarifies the multiferroic behavior and H-T phase diagram of RbFe(SO4)2, providing valuable insights into ferro-rotational magnets.",

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author = "Junjie Yang and Dimuthu Obeysekera and William Ratcliff and Lu Li and Neal, \{Sabine N.\} and Musfeldt, \{Janice L.\} and Shinichiro Yano",

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AU - Yang, Junjie

AU - Obeysekera, Dimuthu

AU - Ratcliff, William

AU - Li, Lu

AU - Neal, Sabine N.

AU - Musfeldt, Janice L.

AU - Yano, Shinichiro

PY - 2025/4/28

Y1 - 2025/4/28

N2 - Ferro-rotational magnet RbFe(SO4)2 has attracted attention for its stable ferro-rotational phase and electric-field-controlled magnetic chirality. This work presents the multiferroic properties and H-T phase diagram of RbFe(SO4)2, which have been underexplored. Our measurements of magnetic susceptibility, ferroelectric polarization, and dielectric constant under various magnetic fields reveal four distinct phases: (I) a ferroelectric and helical magnetic phase below 4 K and 6 T, (II) a paraelectric and collinear magnetic phase below 4 K and above 6 T, (III) a paraelectric and non-collinear magnetic phase below 4 K and above 9 T, and (IV) a paraelectric and paramagnetic above 4 K. This study clarifies the multiferroic behavior and H-T phase diagram of RbFe(SO4)2, providing valuable insights into ferro-rotational magnets.

AB - Ferro-rotational magnet RbFe(SO4)2 has attracted attention for its stable ferro-rotational phase and electric-field-controlled magnetic chirality. This work presents the multiferroic properties and H-T phase diagram of RbFe(SO4)2, which have been underexplored. Our measurements of magnetic susceptibility, ferroelectric polarization, and dielectric constant under various magnetic fields reveal four distinct phases: (I) a ferroelectric and helical magnetic phase below 4 K and 6 T, (II) a paraelectric and collinear magnetic phase below 4 K and above 6 T, (III) a paraelectric and non-collinear magnetic phase below 4 K and above 9 T, and (IV) a paraelectric and paramagnetic above 4 K. This study clarifies the multiferroic behavior and H-T phase diagram of RbFe(SO4)2, providing valuable insights into ferro-rotational magnets.

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