Effects of dynamic stress in magnetic superlattice of a monoaxial chiral magnet Cr1/3NbS2

K. Tsuruta, M. Mito, Y. Togawa, Y. Kousaka, Jun Akimitsu, K. Inoue

Research output: Contribution to journalConference article

Abstract

A monoaxial chiral magnet forms a kind of spin superlattice structure, termed chiral soliton lattice (CSL), by the application of a magnetic field H perpendicular to a helical chiral axis. It has been reported that the CSL accompanies the magnetoresistance effect as well as a discrete change in magnetization and magnetoresistance. In order to verify the effect of the structural modification on the CSL state, we measured the magnetoresistance under the dynamic stress (DS) with a frequency of the order of MHz, which was applied by a piezoelectric ceramic oscillator. The steady application of DS while decreasing H resulted in a suppression of the insertion of chiral soliton. On the other hand, the application of a pulse-like DS while H decreased assisted the insertion of chiral soliton. These results demonstrate that DS modifies the spin structure of the monoaxial chiral magnet, and we can therefore change the activation energy for the insertion of chiral soliton while H is decreased.

Original languageEnglish
Article number012132
JournalJournal of Physics: Conference Series
Volume969
Issue number1
DOIs
Publication statusPublished - Apr 19 2018
Event28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden
Duration: Aug 9 2017Aug 16 2017

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magnets
solitary waves
insertion
piezoelectric ceramics
oscillators
retarding
activation energy
magnetization
pulses
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effects of dynamic stress in magnetic superlattice of a monoaxial chiral magnet Cr1/3NbS2 . / Tsuruta, K.; Mito, M.; Togawa, Y.; Kousaka, Y.; Akimitsu, Jun; Inoue, K.

In: Journal of Physics: Conference Series, Vol. 969, No. 1, 012132, 19.04.2018.

Research output: Contribution to journalConference article

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AU - Akimitsu, Jun

AU - Inoue, K.

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N2 - A monoaxial chiral magnet forms a kind of spin superlattice structure, termed chiral soliton lattice (CSL), by the application of a magnetic field H perpendicular to a helical chiral axis. It has been reported that the CSL accompanies the magnetoresistance effect as well as a discrete change in magnetization and magnetoresistance. In order to verify the effect of the structural modification on the CSL state, we measured the magnetoresistance under the dynamic stress (DS) with a frequency of the order of MHz, which was applied by a piezoelectric ceramic oscillator. The steady application of DS while decreasing H resulted in a suppression of the insertion of chiral soliton. On the other hand, the application of a pulse-like DS while H decreased assisted the insertion of chiral soliton. These results demonstrate that DS modifies the spin structure of the monoaxial chiral magnet, and we can therefore change the activation energy for the insertion of chiral soliton while H is decreased.

AB - A monoaxial chiral magnet forms a kind of spin superlattice structure, termed chiral soliton lattice (CSL), by the application of a magnetic field H perpendicular to a helical chiral axis. It has been reported that the CSL accompanies the magnetoresistance effect as well as a discrete change in magnetization and magnetoresistance. In order to verify the effect of the structural modification on the CSL state, we measured the magnetoresistance under the dynamic stress (DS) with a frequency of the order of MHz, which was applied by a piezoelectric ceramic oscillator. The steady application of DS while decreasing H resulted in a suppression of the insertion of chiral soliton. On the other hand, the application of a pulse-like DS while H decreased assisted the insertion of chiral soliton. These results demonstrate that DS modifies the spin structure of the monoaxial chiral magnet, and we can therefore change the activation energy for the insertion of chiral soliton while H is decreased.

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