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  Combined Arrhenius-Merz Law Describing Domain Relaxation in Type-II Multiferroics

Stein, J., Biesenkamp, S., Cronert, T., Fröhlich, T., Leist, J., Schmalzl, K., et al. (2021). Combined Arrhenius-Merz Law Describing Domain Relaxation in Type-II Multiferroics. Physical Review Letters, 127(9): 097601, pp. 1-6. doi:10.1103/PhysRevLett.127.097601.

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 Creators:
Stein, J.1, Author
Biesenkamp, S.1, Author
Cronert, T.1, Author
Fröhlich, T.1, Author
Leist, J.1, Author
Schmalzl, K.1, Author
Komarek, A. C.2, Author           
Braden, M.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              

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 Abstract: Electric fields were applied to multiferroic TbMnO3 single crystals to control the chiral domains, and the domain relaxation was studied over 8 decades in time by means of polarized neutron scattering. A surprisingly simple combination of an activation law and the Merz law describes the relaxation times in a wide range of electric field and temperature with just two parameters, an activation-field constant and a characteristic time representing the fastest possible inversion. Over the large part of field and temperature values corresponding to almost 6 orders of magnitude in time, multiferroic domain inversion is thus dominated by a single process, the domain wall motion. Only when approaching the multiferroic transition other mechanisms yield an accelerated inversion.

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Language(s): eng - English
 Dates: 2021-08-242021-08-24
 Publication Status: Published in print
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 127 (9) Sequence Number: 097601 Start / End Page: 1 - 6 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1