skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Robust cycloid crossover driven by anisotropy in the skyrmion host GaV 4 S 8

Abstract

We report on the anomalous magnetization dynamics of the cycloidally modulated spin textures under the influence of uniaxial anisotropy in multiferroic GaV4S8. The temperature and field dependence of the linear ac susceptibility [$$χ'_{1ω}$$ (T, H)], AC magnetic loss [$$χ''_{1ω}$$ (T, H)], and nonlinear AC magnetic response [$$M_{3ω}$$ (T, H)] are examined across the magnetic phase diagram in the frequency range f = 10 - 10 000 Hz. According to recent theory, skyrmion vortices under axial crystal symmetry are confined along specific orientations, resulting in enhanced robustness against oblique magnetic fields and altered spin dynamics. We characterize the magnetic response of each spin texture and find that the dynamic rigidity of the Néel skyrmion lattice appears enhanced compared to Bloch-type skyrmions in cubic systems, even in the multidomain state. Anomalous M 3 ω and strong dissipation emerge over the same phase regime where strong variations in the cycloid pitch were observed on lowering temperature in recent small-angle neutron-scattering experiments [White et al., Phys. Rev. B 97, 020401(R) (2018)]. Here, we show that strong anisotropy also drives an extended crossover of the zero-field cycloid texture in GaV4S8. The frequency dependence of these dynamic signatures is consistent with that of a robust anharmonic spin texture exhibiting a correlated domain arrangement. The results underpin the essential role of magnetic anisotropy in enhancing the rigidity of topological spin textures for diverse applications.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5]; ORCiD logo [6];  [6];  [1]
  1. Univ. of South Florida, Tampa, FL (United States). Dept. of Physics
  2. Phenikaa Univ., Hanoi (Vietnam)
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy and Dept. of Materials Science and Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  6. Naval Research Lab. (NRL), Washington, DC (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1606023
Alternate Identifier(s):
OSTI ID: 1605491
Grant/Contract Number:  
AC05-00OR22725; FG02-07ER46438
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 101; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Magnetic phase transitions; Magnetic texture; Magnetization dynamics; Skyrmions; Symmetry protected topological states; Noncentrosymmetric materials; Noncollinear magnets; AC susceptibility measurements

Citation Formats

Clements, E. M., Das, R., Pokharel, G., Phan, M. H., Christianson, A. D., Mandrus, D., Prestigiacomo, J. C., Osofsky, M. S., and Srikanth, H. Robust cycloid crossover driven by anisotropy in the skyrmion host GaV4S8. United States: N. p., 2020. Web. doi:10.1103/PhysRevB.101.094425.
Clements, E. M., Das, R., Pokharel, G., Phan, M. H., Christianson, A. D., Mandrus, D., Prestigiacomo, J. C., Osofsky, M. S., & Srikanth, H. Robust cycloid crossover driven by anisotropy in the skyrmion host GaV4S8. United States. doi:https://doi.org/10.1103/PhysRevB.101.094425
Clements, E. M., Das, R., Pokharel, G., Phan, M. H., Christianson, A. D., Mandrus, D., Prestigiacomo, J. C., Osofsky, M. S., and Srikanth, H. Sun . "Robust cycloid crossover driven by anisotropy in the skyrmion host GaV4S8". United States. doi:https://doi.org/10.1103/PhysRevB.101.094425. https://www.osti.gov/servlets/purl/1606023.
@article{osti_1606023,
title = {Robust cycloid crossover driven by anisotropy in the skyrmion host GaV4S8},
author = {Clements, E. M. and Das, R. and Pokharel, G. and Phan, M. H. and Christianson, A. D. and Mandrus, D. and Prestigiacomo, J. C. and Osofsky, M. S. and Srikanth, H.},
abstractNote = {We report on the anomalous magnetization dynamics of the cycloidally modulated spin textures under the influence of uniaxial anisotropy in multiferroic GaV4S8. The temperature and field dependence of the linear ac susceptibility [$χ'_{1ω}$ (T, H)], AC magnetic loss [$χ''_{1ω}$ (T, H)], and nonlinear AC magnetic response [$M_{3ω}$ (T, H)] are examined across the magnetic phase diagram in the frequency range f = 10 - 10 000 Hz. According to recent theory, skyrmion vortices under axial crystal symmetry are confined along specific orientations, resulting in enhanced robustness against oblique magnetic fields and altered spin dynamics. We characterize the magnetic response of each spin texture and find that the dynamic rigidity of the Néel skyrmion lattice appears enhanced compared to Bloch-type skyrmions in cubic systems, even in the multidomain state. Anomalous M 3 ω and strong dissipation emerge over the same phase regime where strong variations in the cycloid pitch were observed on lowering temperature in recent small-angle neutron-scattering experiments [White et al., Phys. Rev. B 97, 020401(R) (2018)]. Here, we show that strong anisotropy also drives an extended crossover of the zero-field cycloid texture in GaV4S8. The frequency dependence of these dynamic signatures is consistent with that of a robust anharmonic spin texture exhibiting a correlated domain arrangement. The results underpin the essential role of magnetic anisotropy in enhancing the rigidity of topological spin textures for diverse applications.},
doi = {10.1103/PhysRevB.101.094425},
journal = {Physical Review B},
number = 9,
volume = 101,
place = {United States},
year = {2020},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Novel Magnetic Chiral Structures and Unusual Temperature Hysteresis in the Metallic Helimagnet MnP
journal, May 2014

  • Yamazaki, Teruo; Tabata, Yoshikazu; Waki, Takeshi
  • Journal of the Physical Society of Japan, Vol. 83, Issue 5
  • DOI: 10.7566/JPSJ.83.054711

Phase diagram of the chiral magnet Cr 1 / 3 NbS 2 in a magnetic field
journal, March 2016


Magnetic phase diagram of MnSi inferred from magnetization and ac susceptibility
journal, June 2012


Néel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8
journal, September 2015

  • Kézsmárki, I.; Bordács, S.; Milde, P.
  • Nature Materials, Vol. 14, Issue 11
  • DOI: 10.1038/nmat4402

Skyrmion dynamics under uniaxial anisotropy
journal, July 2016


Giant nonlinear magnetic response in a molecule-based magnet
journal, January 2009


Skyrmion Lattice in a Chiral Magnet
journal, February 2009


Symmetry, Structure, and Dynamics of Monoaxial Chiral Magnets
journal, November 2016

  • Togawa, Yoshihiko; Kousaka, Yusuke; Inoue, Katsuya
  • Journal of the Physical Society of Japan, Vol. 85, Issue 11
  • DOI: 10.7566/JPSJ.85.112001

Modulated, or long-periodic, magnetic structures of crystals
journal, November 1984


Frustration and chiral orderings in correlated electron systems
journal, July 2016


Unwinding of a Skyrmion Lattice by Magnetic Monopoles
journal, May 2013


Study of Magnetic Domain Dynamics Using Nonlinear Magnetic Responses: Magnetic Diagnostics of the Itinerant Magnet MnP
journal, October 2015

  • Mito, Masaki; Matsui, Hideaki; Tsuruta, Kazuki
  • Journal of the Physical Society of Japan, Vol. 84, Issue 10
  • DOI: 10.7566/JPSJ.84.104707

Dissipation processes in the insulating skyrmion compound Cu 2 OSeO 3
journal, December 2014


Skyrmion robustness in noncentrosymmetric magnets with axial symmetry: The role of anisotropy and tilted magnetic fields
journal, December 2017


Magnetic field dependence of nonlinear magnetic response and tricritical point in the monoaxial chiral helimagnet Cr 1 / 3 Nb S 2
journal, June 2018


Collective spin excitations of helices and magnetic skyrmions: review and perspectives of magnonics in non-centrosymmetric magnets
journal, June 2017

  • Garst, Markus; Waizner, Johannes; Grundler, Dirk
  • Journal of Physics D: Applied Physics, Vol. 50, Issue 29
  • DOI: 10.1088/1361-6463/aa7573

Symmetry breaking, slow relaxation dynamics, and topological defects at the field-induced helix reorientation in MnSi
journal, January 2017


Phenomenological Theory of Spin-Glasses and Some Rigorous Results
journal, October 1977


Dispersion and Absorption in Dielectrics I. Alternating Current Characteristics
journal, April 1941

  • Cole, Kenneth S.; Cole, Robert H.
  • The Journal of Chemical Physics, Vol. 9, Issue 4
  • DOI: 10.1063/1.1750906

Magnetic relaxation phenomena in the chiral magnet Fe 1 x Co x Si : An ac susceptibility study
journal, October 2016


Multiply periodic states and isolated skyrmions in an anisotropic frustrated magnet
journal, September 2015

  • Leonov, A. O.; Mostovoy, M.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms9275

Direct evidence for cycloidal modulations in the thermal-fluctuation-stabilized spin spiral and skyrmion states of GaV 4 S 8
journal, January 2018


Ginzburg-Landau theory for skyrmions in inversion-symmetric magnets with competing interactions
journal, February 2016


Characteristics of ferroelectric-ferroelastic domains in Néel-type skyrmion host GaV4S8
journal, March 2017

  • Butykai, Ádám; Bordács, Sándor; Kézsmárki, István
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep44663

Magnetic-field-induced phase transition in BiFeO 3 observed by high-field electron spin resonance: Cycloidal to homogeneous spin order
journal, February 2004


On the multiferroic skyrmion-host GaV 4 S 8
journal, November 2016


Magnetic skyrmions: advances in physics and potential applications
journal, June 2017


Real-Space Observation of Helical Spin Order
journal, January 2006


Nonlinear Susceptibility in the Spin Glass
journal, April 1981

  • Fujiki, S.; Katsura, S.
  • Progress of Theoretical Physics, Vol. 65, Issue 4
  • DOI: 10.1143/PTP.65.1130

Terahertz dielectric analysis and spin-phonon coupling in multiferroic GeV 4 S 8
journal, August 2017


Multiferroicity and skyrmions carrying electric polarization in GaV 4 S 8
journal, November 2015

  • Ruff, Eugen; Widmann, Sebastian; Lunkenheimer, Peter
  • Science Advances, Vol. 1, Issue 10
  • DOI: 10.1126/sciadv.1500916

Skyrmion Gas Manipulation for Probabilistic Computing
journal, June 2018


57Fe NMR study of a spatially modulated magnetic structure in BiFeO3
journal, June 2000

  • Zalesskii, A. V.; Zvezdin, A. K.; Frolov, A. A.
  • Journal of Experimental and Theoretical Physics Letters, Vol. 71, Issue 11
  • DOI: 10.1134/1.1307994

The Properties of Isolated Magnetic Vortices
journal, December 1994


History dependence of the magnetic properties of single-crystal Fe 1 x Co x Si
journal, June 2016


Relaxation dynamics of modulated magnetic phases in the skyrmion host GaV 4 S 8 : An ac magnetic susceptibility study
journal, September 2017


Chiral Magnetic Soliton Lattice on a Chiral Helimagnet
journal, March 2012


Experimental study of the magnetic phase transition in the MnSi itinerant helimagnet
journal, May 2008

  • Stishov, S. M.; Petrova, A. E.; Khasanov, S.
  • Journal of Experimental and Theoretical Physics, Vol. 106, Issue 5
  • DOI: 10.1134/S1063776108050063

Magnetic diagnostics using the third-harmonic magnetic response for a molecule-based magnet networked by a single chiral ligand
journal, May 2012

  • Mito, M.; Iriguchi, K.; Deguchi, H.
  • Journal of Applied Physics, Vol. 111, Issue 10
  • DOI: 10.1063/1.4721806

XXV. Notes on electricity and magnetism .—III. On the behaviour of iron and steel under the operation of feeble magnetic forces
journal, March 1887

  • Rayleigh, Lord
  • The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, Vol. 23, Issue 142
  • DOI: 10.1080/14786448708628000

Electronic and Structural Instabilities in GaV 4 S 8 and GaMo 4 S 8
journal, October 2000

  • Pocha, Regina; Johrendt, Dirk; Pöttgen, Rainer
  • Chemistry of Materials, Vol. 12, Issue 10
  • DOI: 10.1021/cm001099b

Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
journal, September 2011


Application of machine learning to two-dimensional Dzyaloshinskii-Moriya ferromagnets
journal, May 2019


Phase diagram and magnetic relaxation phenomena in Cu 2 OSeO 3
journal, August 2016