%0 Journal Article
%A Stein, J.
%A Biesenkamp, S.
%A Cronert, T.
%A Fröhlich, T.
%A Leist, J.
%A Schmalzl, K.
%A Komarek, A. C.
%A Braden, M.
%T Combined Arrhenius-Merz Law Describing Domain Relaxation in Type-II Multiferroics
%J Physical review letters
%V 127
%N 9
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2021-03360
%P 097601
%D 2021
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 34506184
%U <Go to ISI:>//WOS:000688553600009
%R 10.1103/PhysRevLett.127.097601
%U https://juser.fz-juelich.de/record/894705