Abstract Path dependent resistivity ( ρ ) relaxation behavior of FeRh 0.46 Pd 0.54 is studied in magnetic field (H) – temperature (T) parameter space. It shows that within the hysteresis region of zero field ρ – T curve, relaxation rate for AFM to FM forward transition during cooling is one order higher than the reverse transition during warming. However, below the hysteresis region, kinetics of the transition dominates and relaxation behavior depends on the path followed in H-T space to reach the measurement point. These measurements show that at low temperatures relaxation rate for AFM to FM transformation decreases irrespective of metastable phase fraction and it is maximum around 75 K. This is in contrast to relaxation behavior of supercooled/superheated metastable sate where relaxation rate depends on the available phase fraction for the transformation.

中文翻译：

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FeRh0.46Pd0.54在HT空间中的历史相关电阻率弛豫行为

摘要 在磁场（H）-温度（T）参数空间中研究了FeRh 0.46 Pd 0.54 的路径相关电阻率（ ρ ）弛豫行为。结果表明，在零场 ρ - T 曲线的滞后区域内，冷却过程中 AFM 到 FM 正向转变的弛豫率比升温过程中的反向转变高一个数量级。然而，在滞后区域以下，转变动力学占主导地位，弛豫行为取决于在 HT 空间中到达测量点的路径。这些测量结果表明，无论亚稳相分数如何，AFM 到 FM 转变的低温弛豫率都会降低，并且在 75 K 附近达到最大值。