The investigation of magnetic phase transition in cobaltite perovskites by high-resolution neutron powder diffraction under 14 T magnetic field
Abstract
We carried out neutron powder diffraction (NPD) experiments on the layered perovskite cobaltite PrBaCo2O5.5+x (x = 0.24) at Super High Resolution Neutron Powder Diffractometer (SuperHRPD) with a newly installed magnet. At low temperatures, the antiferromagnetic (AFM) reflections of the NPD profile are suppressed whilst ferromagnetic (FM) reflections are enhanced under 14 T magnetic field. The magnetic-field-induced AFM-FM transition reveals the ground-state energy of FM is close to that of AFM.
- Publication:
-
Physica B Condensed Matter
- Pub Date:
- December 2018
- DOI:
- 10.1016/j.physb.2017.11.080
- Bibcode:
- 2018PhyB..551..111T
- Keywords:
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- Double perovskite cobaltite;
- Neutron diffraction;
- Magnetic field;
- Magnetic phase transition