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arXiv 2302.09102cond-mat.mtrl-scicond-mat.mes-hall
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低温下FePt薄膜中铁磁条纹的演化

Evolution of ferromagnetic stripes in FePt films at low temperature

Cynthia P. Quinteros, Dafne Goijman, Silvia Damerio, Julián Milano

AI总结:

本文研究等原子比FePt薄膜在低温下的铁磁条纹演化,发现条纹宽度遵循Murayama定律且对温度有非平凡依赖,并揭示条纹状态取决于温度变化历史而非参数条件。

摘要:

铁性畴和畴壁的图案正被深入研究,以实现新的逻辑方案。此类对象的任何技术应用都依赖于对它们的详细理解。本研究分析了等原子比FePt薄膜在低温下的铁磁条纹图案。由于已知FePt在厚度变化时会从面内均匀磁化转变为条纹状,因此研究了多个样品以考虑所分析范围内的临界值。条纹宽度表现出众所周知的Murayama定律,同时还报道了对温度的非平凡依赖关系。此外,图案的室温均匀分布在温度循环后演变为畸变分布。最后,在降低和升高温度时获得了不同的条纹图案,表明这些状态依赖于所施加刺激的历史,而非参数条件。

英文摘要:

Patterns of ferroic domains and domain walls are being intensively studied to implement new logic schemes. Any technological application of such objects depends on a detailed understanding of them. This study analyzes patterns of ferromagnetic stripes on equiatomic FePt thin films at low temperatures. Since FePt is known to develop a transition from in-plane homogeneous magnetization to stripes upon varying its thickness, multiple samples are studied to consider the critical value within the analyzed range. Stripes' width demonstrates the well-known Murayama's law while a non-trivial dependence on temperature is also reported. Moreover, the room-temperature uniform distribution of the pattern evolves into a distorted one upon temperature cycling. Finally, dissimilar striped patterns are obtained upon reducing and increasing temperature indicating the states are dependent on the history of applied stimuli rather than the parametric conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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