TY  - JOUR
AU  - Zobkalo, I. A.
AU  - Gavrilov, S. V.
AU  - Sazonov, Andrew
AU  - Hutanu, Vladimir
TI  - Investigation of TbMn2O5 by polarized neutron diffraction
JO  - Journal of physics / Condensed matter
VL  - 30
IS  - 20
SN  - 0953-8984
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2019-00371
SP  - 205804
PY  - 2018
AB  - In order to make a new approach to the elucidation of the microscopic mechanisms of multiferroicity in the RMn2O5 family, experiments with different methods of polarized neutrons scattering were performed on a TbMn2O5 single crystal. We employed three different techniques of polarized neutron diffraction without the analysis after scattering, the XYZ-polarization analysis, and technique of spherical neutron polarimetry (SNP). Measurements with SNP were undertaken both with and without external electric field. A characteristic difference in the population of 'right' and 'left' helix domains in all magnetically ordered phases of TbMn2O5, was observed. This difference can be controlled by an external electric field in the field-cooled mode. The analysis of the results gives an evidence that antisymmetric Dzyaloshinsky-Moria exchange is effective in all the magnetic phases in TbMn2O5.
LB  - PUB:(DE-HGF)16
C6  - pmid:29651995
UR  - <Go to ISI:>//WOS:000431059000001
DO  - DOI:10.1088/1361-648X/aabdf6
UR  - https://juser.fz-juelich.de/record/859519
ER  -