论文标题
smfeaso0.8f0.2中的旋转玻璃行为
Spin-glass-like behaviour in SmFeAsO0.8F0.2
论文作者
论文摘要
基于铁的oxypnictide超导体SMFESO0.8F0.2在高压下合成，并通过测量直流磁敏感性进行了研究。零场冷却（ZFC）的磁化率证实了样品的批量超导性，其临界温度为TC = 50 K，磁化强度在4.3 K处显着跳跃，通常归因于该系统中SM3+离子的抗磁磁有序。由于跳跃的发生取决于冷却历史，因此我们的数据强烈表明了类似旋转玻璃的行为。
The iron-based oxypnictide superconductor SmFeAsO0.8F0.2 was synthesized under high-pressure and investigated by measuring dc magnetic susceptibility. The zero-field cooled (ZFC) magnetic susceptibility confirmed the bulk superconductivity of the sample with a critical temperature of Tc = 50 K and a significant jump in the magnetization at 4.3 K, usually attributed to the antiferromagnetic ordering of Sm3+ ions in this system. Since the occurrence of the jump depends on the cooling history, our data strongly suggest a spin-glass-like behaviour.
