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Unusual Field Dependence of the Anomalous Hall Effect inTa/Tb−Fe−Co
Physical Review Applied ( IF 3.8 ) Pub Date : 2020-03-20 , DOI: 10.1103/physrevapplied.13.034053 M.D. Davydova , P.N. Skirdkov , K.A. Zvezdin , Jong-Ching Wu , Sheng-Zhe Ciou , Yi-Ru Chiou , Lin-Xiu Ye , Te-Ho Wu , Ramesh Chandra Bhatt , A.V. Kimel , A.K. Zvezdin
Physical Review Applied ( IF 3.8 ) Pub Date : 2020-03-20 , DOI: 10.1103/physrevapplied.13.034053 M.D. Davydova , P.N. Skirdkov , K.A. Zvezdin , Jong-Ching Wu , Sheng-Zhe Ciou , Yi-Ru Chiou , Lin-Xiu Ye , Te-Ho Wu , Ramesh Chandra Bhatt , A.V. Kimel , A.K. Zvezdin
Experimental studies of the anomalous Hall effect are performed for thin-film over a wide range of temperatures and magnetic fields up to 3 T. Far from the compensation temperature ($T_{M}$ = 277 K), the field dependence has a conventional shape of a single hysteresis loop; just below the compensation point, the dependence is anomalous with the shape of a triple hysteresis. To understand this behavior, we experimentally reveal the magnetic phase diagram and theoretically analyze it in terms of spin-flop-like phase transitions. In this case, we observe the dominance of the sublattice, which is a subject of the strong interaction with the layer. This anisotropy enhancement is expressed in the appearance of abnormal wing-shaped hysteresis loops near the compensation point and, in the unusual phase diagram, where the first-order phase transition line deviates towards low temperatures. This effect can be useful for the design of ultrafast ferrimagnetic devices with desired switching parameters.
中文翻译:
Ta / Tb-Fe-Co中异常霍尔效应的异常场相关性
对薄膜进行霍尔效应反常的实验研究 在高达3 T的温度和磁场范围内。远离补偿温度($ T_ {M} $ = 277 K),场相关性具有单个磁滞回线的常规形状;在补偿点以下,相依性是异常的,具有三重磁滞的形状。为了理解这种行为,我们通过实验揭示了磁相图,并从理论上以类似自旋触发器的相变对其进行了分析。在这种情况下,我们观察到 子晶格是与 层。这个各向异性的增强表现为在补偿点附近出现异常的翼形磁滞回线,并且在不寻常的相图中,一阶相变线向低温方向偏移。对于具有所需开关参数的超快速亚铁磁器件的设计,此效果可能有用。
更新日期:2020-03-21
中文翻译:
Ta / Tb-Fe-Co中异常霍尔效应的异常场相关性
对薄膜进行霍尔效应反常的实验研究 在高达3 T的温度和磁场范围内。远离补偿温度($ T_ {M} $ = 277 K),场相关性具有单个磁滞回线的常规形状;在补偿点以下,相依性是异常的,具有三重磁滞的形状。为了理解这种行为,我们通过实验揭示了磁相图,并从理论上以类似自旋触发器的相变对其进行了分析。在这种情况下,我们观察到 子晶格是与 层。这个各向异性的增强表现为在补偿点附近出现异常的翼形磁滞回线,并且在不寻常的相图中,一阶相变线向低温方向偏移。对于具有所需开关参数的超快速亚铁磁器件的设计,此效果可能有用。