Abstract This work focuses on Magnetic and magnetocaloric properties of doped Gd based manganites; Gd0.7Sr0.3Mn1−xTixO3 (x = 0, 0.1, 0.15) denoted by G, G0.1, G0.15 respectively. Isothermal magnetic entropy change (|ΔS(T)|) shows appreciably high values for the three compounds. For 10 T field, the peak values obtained for magnetic entropy change is 10.4 JKg−1 K−1, 9.6 JKg−1 K−1 and 22.2 JKg−1 K−1respectively for samples G, G0.1, G0.15 at 12.5 K. Interestingly, −ΔS(T) shows a universal behaviour near the transition region at the low temperature. Relative cooling power (RCP) is comparatively high for Gd0.7Sr0.3Mn0.85Ti0.15O3 at low fields, but for high fields Gd0.7Sr0.3MnO3 has comparatively high values for RCP.

中文翻译：

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Ti掺杂锰酸盐Gd0.7Sr0.3Mn1-xTixO3(x=0,0.1和0.15)磁热效应的研究

摘要 这项工作的重点是掺杂 Gd 基锰矿的磁性和磁热特性；Gd0.7Sr0.3Mn1−xTixO3 (x = 0, 0.1, 0.15) 分别用 G, G0.1, G0.15 表示。三种化合物的等温磁熵变 (|ΔS(T)|) 显示出相当高的值。对于 10 T 场，样品 G、G0.1、G0.15 在 12.5 时获得的磁熵变化峰值分别为 10.4 JKg-1 K-1、9.6 JKg-1 K-1 和 22.2 JKg-1 K-1 K. 有趣的是，-ΔS(T) 在低温下在过渡区附近表现出普遍行为。Gd0.7Sr0.3Mn0.85Ti0.15O3 在低场相对冷却功率 (RCP) 相对较高，但在高场 Gd0.7Sr0.3MnO3 的 RCP 值相对较高。