This title appears in the Scientific Report :
2019
Please use the identifier:
http://hdl.handle.net/2128/21765 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.97.064404 in citations.
Magnetic structure of the swedenborgite CaBa(Co$_3$Fe)O$_7$ derived by unpolarized neutron diffraction and spherical neutron polarimetry
Magnetic structure of the swedenborgite CaBa(Co$_3$Fe)O$_7$ derived by unpolarized neutron diffraction and spherical neutron polarimetry
We present a study that combines polarized and unpolarized neutrons to derive the magnetic structure of the swedenborgite compound CaBa(Co3Fe)O7. Integrated intensities from a standard neutron diffraction experiment and polarization matrices from spherical neutron polarimetry have been simultaneousl...
Saved in:
Personal Name(s): | Qureshi, N. (Corresponding author) |
---|---|
Díaz, M. T. Fernández / Chapon, L. C. / Senyshyn, A. / Schweika, W. / Valldor, M. | |
Contributing Institute: |
Neutronenstreuung; ICS-1 JCNS-FRM-II; JCNS-FRM-II Neutronenstreuung; JCNS-1 |
Published in: | Physical Review B Physical review / B, 97 97 (2018 2018) 6 6, S. 064404 064404 |
Imprint: |
Woodbury, NY
Inst.
2018
|
DOI: |
10.1103/PhysRevB.97.064404 |
Document Type: |
Journal Article |
Research Program: |
Soft Matter, Health and Life Sciences Jülich Centre for Neutron Research (JCNS) Functional Macromolecules and Complexes |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.97.064404 in citations.
We present a study that combines polarized and unpolarized neutrons to derive the magnetic structure of the swedenborgite compound CaBa(Co3Fe)O7. Integrated intensities from a standard neutron diffraction experiment and polarization matrices from spherical neutron polarimetry have been simultaneously analyzed revealing a complex order, which differs from the usual spin configurations on a kagome lattice. We find that the magnetic structure is well described by a combination of two one-dimensional representations corresponding to the magnetic superspace symmetry P2′1, and it consists of spins rotating around an axis close to the [110] direction. Due to the propagation vector q=(1300), this modulation has cycloidal and helicoidal character rendering this system a potential multiferroic. The resulting spin configuration can be mapped onto the classical √3×√3 structure of a kagome lattice, and it indicates an important interplay between the kagome and the triangular layers of the crystal structure. |