Magnetic Resonance in the Chiral Helimagnet CrNb3S6

Daichi Yoshizawa; Jun Ichiro Kishine; Yusuke Kousaka; Yoshihiko Togawa; Masaki Mito; Jun Akimitsu; Katsuya Inoue; Masayuki Hagiwara

doi:10.1016/j.phpro.2015.12.127

Magnetic Resonance in the Chiral Helimagnet CrNb₃S₆

Daichi Yoshizawa, Jun Ichiro Kishine, Yusuke Kousaka, Yoshihiko Togawa, Masaki Mito, Jun Akimitsu, Katsuya Inoue, Masayuki Hagiwara

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

Recently, magnetic substances with chirality, namely the handedness of the magnetic structure, have attracted considerable attention because of the anomalous phenomena which appear in magnetic fields. CrNb₃S₆ is one of the chiral magnets formed by exchange and Dzyaloshinsky-Moriya (DM) interactions. Electron spin resonance (ESR) measurements of CrNb₃S₆ in magnetic fields parallel to the c-axis (helical axis) have been performed to evaluate the exchange and the DM constants that determine the helical structure. Fitting the ESR data to a calculated mode based on a spin wave theory yields values for the ferromagnetic inter-plane exchange constant J/k_B = 16.2 K, the DM constant D/k_B = 1.29 K, and the single-ion anisotropy constant. From the Curie-Weiss temperature θ_CW ∼ 145 K, large intra-plane ferromagnetic exchange interactions are suggested.

Original language	English
Pages (from-to)	926-931
Number of pages	6
Journal	Unknown Journal
Volume	75
DOIs	https://doi.org/10.1016/j.phpro.2015.12.127
Publication status	Published - 2015
Externally published	Yes

Keywords

Chiral magnet
Dzyaloshinsky-Moriya interaction
Electron spin resonance
exchange interaction

ASJC Scopus subject areas

Physics and Astronomy(all)

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Yoshizawa, D., Kishine, J. I., Kousaka, Y., Togawa, Y., Mito, M., Akimitsu, J., Inoue, K., & Hagiwara, M. (2015). Magnetic Resonance in the Chiral Helimagnet CrNb₃S₆ Unknown Journal, 75, 926-931. https://doi.org/10.1016/j.phpro.2015.12.127

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title = "Magnetic Resonance in the Chiral Helimagnet CrNb3S6 ",

abstract = "Recently, magnetic substances with chirality, namely the handedness of the magnetic structure, have attracted considerable attention because of the anomalous phenomena which appear in magnetic fields. CrNb3S6 is one of the chiral magnets formed by exchange and Dzyaloshinsky-Moriya (DM) interactions. Electron spin resonance (ESR) measurements of CrNb3S6 in magnetic fields parallel to the c-axis (helical axis) have been performed to evaluate the exchange and the DM constants that determine the helical structure. Fitting the ESR data to a calculated mode based on a spin wave theory yields values for the ferromagnetic inter-plane exchange constant J/kB = 16.2 K, the DM constant D/kB = 1.29 K, and the single-ion anisotropy constant. From the Curie-Weiss temperature θCW ∼ 145 K, large intra-plane ferromagnetic exchange interactions are suggested.",

keywords = "Chiral magnet, Dzyaloshinsky-Moriya interaction, Electron spin resonance, exchange interaction",

author = "Daichi Yoshizawa and Kishine, {Jun Ichiro} and Yusuke Kousaka and Yoshihiko Togawa and Masaki Mito and Jun Akimitsu and Katsuya Inoue and Masayuki Hagiwara",

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T1 - Magnetic Resonance in the Chiral Helimagnet CrNb3S6

AU - Yoshizawa, Daichi

AU - Kishine, Jun Ichiro

AU - Kousaka, Yusuke

AU - Togawa, Yoshihiko

AU - Mito, Masaki

AU - Akimitsu, Jun

AU - Inoue, Katsuya

AU - Hagiwara, Masayuki

PY - 2015

Y1 - 2015

N2 - Recently, magnetic substances with chirality, namely the handedness of the magnetic structure, have attracted considerable attention because of the anomalous phenomena which appear in magnetic fields. CrNb3S6 is one of the chiral magnets formed by exchange and Dzyaloshinsky-Moriya (DM) interactions. Electron spin resonance (ESR) measurements of CrNb3S6 in magnetic fields parallel to the c-axis (helical axis) have been performed to evaluate the exchange and the DM constants that determine the helical structure. Fitting the ESR data to a calculated mode based on a spin wave theory yields values for the ferromagnetic inter-plane exchange constant J/kB = 16.2 K, the DM constant D/kB = 1.29 K, and the single-ion anisotropy constant. From the Curie-Weiss temperature θCW ∼ 145 K, large intra-plane ferromagnetic exchange interactions are suggested.

AB - Recently, magnetic substances with chirality, namely the handedness of the magnetic structure, have attracted considerable attention because of the anomalous phenomena which appear in magnetic fields. CrNb3S6 is one of the chiral magnets formed by exchange and Dzyaloshinsky-Moriya (DM) interactions. Electron spin resonance (ESR) measurements of CrNb3S6 in magnetic fields parallel to the c-axis (helical axis) have been performed to evaluate the exchange and the DM constants that determine the helical structure. Fitting the ESR data to a calculated mode based on a spin wave theory yields values for the ferromagnetic inter-plane exchange constant J/kB = 16.2 K, the DM constant D/kB = 1.29 K, and the single-ion anisotropy constant. From the Curie-Weiss temperature θCW ∼ 145 K, large intra-plane ferromagnetic exchange interactions are suggested.

KW - Chiral magnet

KW - Dzyaloshinsky-Moriya interaction

KW - Electron spin resonance

KW - exchange interaction

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SN - 0402-1215

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