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Title: Scaling of domain cascades in stripe and skyrmion phases

Abstract

The origin of deterministic macroscopic properties often lies in microscopic stochastic motion. Magnetic fluctuations that manifest as domain avalanches and chaotic magnetization jumps exemplify such stochastic motion and have been studied in great detail. Here we report Fourier space studies of avalanches in a system exhibiting competing magnetic stripe and skyrmion phase using a soft X-ray speckle metrology technique. We demonstrate the existence of phase boundaries and underlying critical points in the stripe and skyrmion phases. We found that distinct scaling and universality classes are associated with these domain topologies. The magnitude and frequency of abrupt magnetic domain jumps observed in the stripe phase are dramatically reduced in the skyrmion phase. Our results provide an incisive way to probe and understand phase stability in systems exhibiting complex spin topologies.

Authors:
ORCiD logo [1];  [2];  [3];  [2];  [4]; ORCiD logo [4]; ORCiD logo [5];  [3];  [2]; ORCiD logo [1]; ORCiD logo [2]
  1. Saha Inst. of Nuclear Physics, West Bengal (India)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of Illinois Urbana-Champaign, Urbana, IL (United States)
  4. Univ. of California San Diego, La Jolla, CA (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1559212
Grant/Contract Number:  
AC02-05CH11231; SC0003678
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Singh, A., Lee, J. C. T., Avila, K. E., Chen, Y., Montoya, S. A., Fullerton, E. E., Fischer, P., Dahmen, K. A., Kevan, S. D., Sanyal, M. K., and Roy, S. Scaling of domain cascades in stripe and skyrmion phases. United States: N. p., 2019. Web. doi:10.1038/s41467-019-09934-z.
Singh, A., Lee, J. C. T., Avila, K. E., Chen, Y., Montoya, S. A., Fullerton, E. E., Fischer, P., Dahmen, K. A., Kevan, S. D., Sanyal, M. K., & Roy, S. Scaling of domain cascades in stripe and skyrmion phases. United States. https://doi.org/10.1038/s41467-019-09934-z
Singh, A., Lee, J. C. T., Avila, K. E., Chen, Y., Montoya, S. A., Fullerton, E. E., Fischer, P., Dahmen, K. A., Kevan, S. D., Sanyal, M. K., and Roy, S. Tue . "Scaling of domain cascades in stripe and skyrmion phases". United States. https://doi.org/10.1038/s41467-019-09934-z. https://www.osti.gov/servlets/purl/1559212.
@article{osti_1559212,
title = {Scaling of domain cascades in stripe and skyrmion phases},
author = {Singh, A. and Lee, J. C. T. and Avila, K. E. and Chen, Y. and Montoya, S. A. and Fullerton, E. E. and Fischer, P. and Dahmen, K. A. and Kevan, S. D. and Sanyal, M. K. and Roy, S.},
abstractNote = {The origin of deterministic macroscopic properties often lies in microscopic stochastic motion. Magnetic fluctuations that manifest as domain avalanches and chaotic magnetization jumps exemplify such stochastic motion and have been studied in great detail. Here we report Fourier space studies of avalanches in a system exhibiting competing magnetic stripe and skyrmion phase using a soft X-ray speckle metrology technique. We demonstrate the existence of phase boundaries and underlying critical points in the stripe and skyrmion phases. We found that distinct scaling and universality classes are associated with these domain topologies. The magnitude and frequency of abrupt magnetic domain jumps observed in the stripe phase are dramatically reduced in the skyrmion phase. Our results provide an incisive way to probe and understand phase stability in systems exhibiting complex spin topologies.},
doi = {10.1038/s41467-019-09934-z},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {Tue Apr 30 00:00:00 EDT 2019},
month = {Tue Apr 30 00:00:00 EDT 2019}
}

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Works referencing / citing this record:

Evidence of 2D anti-ferromagnetic ordering in rare-earth Langmuir–Blodgett films
journal, September 2019

  • Singh, Arnab; Mukhopadhyay, Mrinmay K.; Sanyal, Milan K.
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