| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1798316 | Journal of Magnetism and Magnetic Materials | 2016 | 4 Pages |
•A new compound La1.1Bi0.3Sr1.6Mn2O7 has been synthesized by the co-precipitation method.•The PM–FM transition around Tc is of 2nd order.•The (−∆Smax) and the RCP are, 1.65 J kg−1K−1 and 134.4 J kg−1 respectively, for a 5 T magnetic field change at 340 K.
The La1.1Bi0.3Sr1.6Mn2O7 sample was synthesized by coprecipitation method. Its structure has been characterized by X-ray powder diffraction. The diffraction patterns are consistent with the I4/mmm symmetry, with tetragonal lattice parameters a=3.8750±0.0001 Å and c=20.0456±0.0002 Å. Magnetic measurements have shown a ferromagnetic like ordering with second order magnetic phase transition to paramagnetic states. The magnetic entropy change caused by a magnetic field, (−∆Smax), was estimated on the basis of the Maxwell relation. The maximum magnetic entropy change (−∆Smax) and the relative cooling power (RCP) are, 1.65 J kg−1K−1 and 134.4 J kg−1 respectively, for a 5 T magnetic field change at 340 K.
