Abstract
We report the results of detailed investigations of magnetization, heat-capacity, dielectric, pyrocurrent, and magneto(di)electric measurements on Tb2BaCoO5, belonging to a hitherto unexplored spin-chain cobaltate family, R2BaCoO5 (R = Rare-earths). The magnetic measurements reveal that this compound exhibits an antiferromagnetic transition at (TN=) 18.8 K and there is a spin reorientation beyond 40 kOe below TN. Dielectric and pyrocurrent data measured as a function of temperature and magnetic field establish that this compound is a “type-II” multiferroic material. The most fascinating finding which we would like to emphasize is that the observed value of the magneto-dielectric effect beyond the metamagnetic transition field is the largest (close to 55%, below 10 K, for H = ∼100 kOe) ever reported for polycrystals of a compound in the bulk form, thereby offering a hope to find a single-phase polycrystalline compound at room temperature to enable ease of applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
