Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure

M. Mito, T. Tajiri, K. Tsuruta, H. Deguchi, J. Kishine, K. Inoue, Y. Kousaka, Y. Nakao, Jun Akimitsu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We perform structural analysis experiments on the chiral magnet Cr1/3NbS2, in which Cr3+ ions are inserted between hexagonal NbS2 layers. The noncentrosymmetrical nature of the inserted Cr3+ appears as a distorted CrS6 octahedron. Under the application of hydrostatic pressure, the lattice shrinks significantly along the c-axis rather than the a-axis. However, at a pressure P of approximately 3-4 GPa, a kink in the rate of decrease in the lattice parameters is observed, and the slight movement of a Nb atom along the c-axis brings about a decrease in the distortion of the CrS6 octahedron. This structural change qualitatively suggests a decrease in the strength of the Dzyaloshinskii-Moriya (D-M) interaction. Under hydrostatic pressure, the magnetic ordering temperature TC decreases, and dTC/dP exhibits a slight change at around 3 GPa. A series of experiments indicates that the change in the structural symmetry of the CrS6 octahedron influences the exchange network between Cr3+ ions as well as the D-M interaction.

Original languageEnglish
Article number183904
JournalJournal of Applied Physics
Volume117
Issue number18
DOIs
Publication statusPublished - May 14 2015
Externally publishedYes

Fingerprint

magnets
hydrostatic pressure
structural analysis
lattice parameters
ions
interactions
symmetry
atoms
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure. / Mito, M.; Tajiri, T.; Tsuruta, K.; Deguchi, H.; Kishine, J.; Inoue, K.; Kousaka, Y.; Nakao, Y.; Akimitsu, Jun.

In: Journal of Applied Physics, Vol. 117, No. 18, 183904, 14.05.2015.

Research output: Contribution to journalArticle

Mito, M, Tajiri, T, Tsuruta, K, Deguchi, H, Kishine, J, Inoue, K, Kousaka, Y, Nakao, Y & Akimitsu, J 2015, 'Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure', Journal of Applied Physics, vol. 117, no. 18, 183904. https://doi.org/10.1063/1.4919833
Mito, M. ; Tajiri, T. ; Tsuruta, K. ; Deguchi, H. ; Kishine, J. ; Inoue, K. ; Kousaka, Y. ; Nakao, Y. ; Akimitsu, Jun. / Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure. In: Journal of Applied Physics. 2015 ; Vol. 117, No. 18.
@article{3906f01c4dae41bfa7bc3a1331f908a9,
title = "Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure",
abstract = "We perform structural analysis experiments on the chiral magnet Cr1/3NbS2, in which Cr3+ ions are inserted between hexagonal NbS2 layers. The noncentrosymmetrical nature of the inserted Cr3+ appears as a distorted CrS6 octahedron. Under the application of hydrostatic pressure, the lattice shrinks significantly along the c-axis rather than the a-axis. However, at a pressure P of approximately 3-4 GPa, a kink in the rate of decrease in the lattice parameters is observed, and the slight movement of a Nb atom along the c-axis brings about a decrease in the distortion of the CrS6 octahedron. This structural change qualitatively suggests a decrease in the strength of the Dzyaloshinskii-Moriya (D-M) interaction. Under hydrostatic pressure, the magnetic ordering temperature TC decreases, and dTC/dP exhibits a slight change at around 3 GPa. A series of experiments indicates that the change in the structural symmetry of the CrS6 octahedron influences the exchange network between Cr3+ ions as well as the D-M interaction.",
author = "M. Mito and T. Tajiri and K. Tsuruta and H. Deguchi and J. Kishine and K. Inoue and Y. Kousaka and Y. Nakao and Jun Akimitsu",
year = "2015",
month = "5",
day = "14",
doi = "10.1063/1.4919833",
language = "English",
volume = "117",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "18",

}

TY - JOUR

T1 - Investigation of structural changes in chiral magnet Cr1/3NbS2 under application of pressure

AU - Mito, M.

AU - Tajiri, T.

AU - Tsuruta, K.

AU - Deguchi, H.

AU - Kishine, J.

AU - Inoue, K.

AU - Kousaka, Y.

AU - Nakao, Y.

AU - Akimitsu, Jun

PY - 2015/5/14

Y1 - 2015/5/14

N2 - We perform structural analysis experiments on the chiral magnet Cr1/3NbS2, in which Cr3+ ions are inserted between hexagonal NbS2 layers. The noncentrosymmetrical nature of the inserted Cr3+ appears as a distorted CrS6 octahedron. Under the application of hydrostatic pressure, the lattice shrinks significantly along the c-axis rather than the a-axis. However, at a pressure P of approximately 3-4 GPa, a kink in the rate of decrease in the lattice parameters is observed, and the slight movement of a Nb atom along the c-axis brings about a decrease in the distortion of the CrS6 octahedron. This structural change qualitatively suggests a decrease in the strength of the Dzyaloshinskii-Moriya (D-M) interaction. Under hydrostatic pressure, the magnetic ordering temperature TC decreases, and dTC/dP exhibits a slight change at around 3 GPa. A series of experiments indicates that the change in the structural symmetry of the CrS6 octahedron influences the exchange network between Cr3+ ions as well as the D-M interaction.

AB - We perform structural analysis experiments on the chiral magnet Cr1/3NbS2, in which Cr3+ ions are inserted between hexagonal NbS2 layers. The noncentrosymmetrical nature of the inserted Cr3+ appears as a distorted CrS6 octahedron. Under the application of hydrostatic pressure, the lattice shrinks significantly along the c-axis rather than the a-axis. However, at a pressure P of approximately 3-4 GPa, a kink in the rate of decrease in the lattice parameters is observed, and the slight movement of a Nb atom along the c-axis brings about a decrease in the distortion of the CrS6 octahedron. This structural change qualitatively suggests a decrease in the strength of the Dzyaloshinskii-Moriya (D-M) interaction. Under hydrostatic pressure, the magnetic ordering temperature TC decreases, and dTC/dP exhibits a slight change at around 3 GPa. A series of experiments indicates that the change in the structural symmetry of the CrS6 octahedron influences the exchange network between Cr3+ ions as well as the D-M interaction.

UR - http://www.scopus.com/inward/record.url?scp=84929379828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929379828&partnerID=8YFLogxK

U2 - 10.1063/1.4919833

DO - 10.1063/1.4919833

M3 - Article

AN - SCOPUS:84929379828

VL - 117

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 18

M1 - 183904

ER -