| Issue |
Europhys. Lett.
Volume 36, Number 6, November III 1996
|
|
|---|---|---|
| Page(s) | 455 - 460 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00251-7 | |
| Published online | 01 September 2002 | |
Antiferromagnetic domains and the spin-flop transition of MnF2
Argonne National Laboratory - Argonne, IL 60439, USA
Received:
29
August
1996
Accepted:
4
October
1996
In antiferromagnetic 
the magnetic moments of manganese are aligned
along the tetragonal axis of the rutile structure. In a magnetic field HSF
along that axis (9.27 T at 4.2 K) the antiferromagnetic moments flop in
the basal plane. Polarized neutron diffraction measurements showed that at
about HSF the entire crystal becomes aligned in a single antiferromagnetic
domain, which persists even after the field is suppressed. The effect is
due to a minute misalignment (a fraction of degree) of the applied field
with the tetragonal axis of the crystal. The ensuing breakdown of symmetry
at the spin-flop transition provides a way to control domains in this type
of antiferromagnet.
PACS: 75.25.+z – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.) / 75.30.Kz – Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) / 75.60.-d – Domain effects, magnetization curves, and hysteresis
© EDP Sciences, 1996
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