TY  - JOUR
AU  - Stein, J.
AU  - Biesenkamp, S.
AU  - Cronert, T.
AU  - Fröhlich, T.
AU  - Leist, J.
AU  - Schmalzl, K.
AU  - Komarek, A. C.
AU  - Braden, M.
TI  - Combined Arrhenius-Merz Law Describing Domain Relaxation in Type-II Multiferroics
JO  - Physical review letters
VL  - 127
IS  - 9
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2021-03360
SP  - 097601
PY  - 2021
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 34506184
UR  - <Go to ISI:>//WOS:000688553600009
DO  - DOI:10.1103/PhysRevLett.127.097601
UR  - https://juser.fz-juelich.de/record/894705
ER  -