Das, Ranjan and Yanda, Premakumar and Sundaresan, A and Sarma, D D (2019) Ground-state ferrimagnetism and magneto-caloric effects in Nd2NiMnO6. In: MATERIALS RESEARCH EXPRESS, 6 (11).
|
PDF
mat_res_exp-6-11_2019.pdf - Published Version Download (1MB) | Preview |
Abstract
Extending our earlier investigation of magnetic properties of Nd2NiMnO6, we show that it exhibits a magnetic transition below similar to 6 K to a ferrimagnetic state. This behavior is interpreted as arising from a long-range ordering of Nd moments antiferromagnetically coupled to the ferromagnetic Ni-Mn ordered moments. Due to the richness of its multiple magnetic transitions and the easily influenced magnetic state by the application of an external magnetic field, established in our earlier study, it has a remarkable inverse magneto-caloric effect (IMCE) at low temperatures (T < 50 K) together with a significant conventional magneto-caloric effect (CMCE) at the ferromagnetic ordering temperature (T-c similar to 200 K). IMCE and CMCE correspond to the antiferromagnetic arrangement of Nd and Ni-Mn sublattices and ferromagnetic ordering of Ni-Mn sublattices, respectively. Nd2NiMnO6 with its second order phase transition follows the universal behavior of Delta S-M(T); it also shows a power law dependency on the magnetic field as Delta S-M proportional to H-eta.
| Item Type: | Journal Article |
|---|---|
| Publication: | MATERIALS RESEARCH EXPRESS |
| Publisher: | IOP PUBLISHING LTD |
| Additional Information: | Copyright of this article belongs to IOP PUBLISHING LTD |
| Keywords: | double perovskite; magnetism; magnetocaloric effect |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 20 Jan 2020 06:34 |
| Last Modified: | 20 Jan 2020 06:34 |
| URI: | http://eprints.iisc.ac.in/id/eprint/64347 |
Actions (login required)
 |
View Item |
