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Magnetostriction of α-RuCl3 Flakes in the Zigzag Phase

Journal Article · · Journal of Physical Chemistry. C
Motivated by the possibility of enhanced magnetic fluctuations in exfoliated α-RuCl3 flakes, we study magneto-Raman spectra of exfoliated multilayer α-RuCl3 in out-of-plane magnetic fields of -6 to 6 T at temperatures of 670 mK to 4 K. While the literature currently suggests that bulk α-RuCl3 is in an antiferromagnetic zigzag phase with R$$\bar3$$ symmetry at low temperatures, we do not observe R$$\bar3$$ symmetry in exfoliated α-RuCl3 at low temperatures. While we saw no magnetic field-driven transitions, the Raman modes exhibit unexpected stochastic shifts in response to the applied magnetic field that are above the uncertainties inferred from Bayesian analysis. Finally, these stochastic shifts are consistent with the emergence of magnetostrictive interactions in exfoliated α-RuCl3.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1833964
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 46 Vol. 125; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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