This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1088/1361-648X/aabdf6 in citations.
Investigation of TbMn2O5 by polarized neutron diffraction
Investigation of TbMn2O5 by polarized neutron diffraction
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 diffra...
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Personal Name(s): | Zobkalo, I. A. (Corresponding author) |
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Gavrilov, S. V. / Sazonov, Andrew / Hutanu, Vladimir (Last author) | |
Contributing Institute: |
JARA-FIT; JARA-FIT Streumethoden; JCNS-2 JCNS-FRM-II; JCNS-FRM-II |
Published in: | Journal of physics / Condensed matter, 30 (2018) 20, S. 205804 |
Imprint: |
Bristol
IOP Publ.
2018
|
PubMed ID: |
29651995 |
DOI: |
10.1088/1361-648X/aabdf6 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) FRM II / MLZ Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States |
Subject (ZB): | |
Publikationsportal JuSER |
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. |