Temperature-driven nucleation of ferromagnetic domains in FeRh thin films
Temperature-driven nucleation of ferromagnetic domains in FeRh thin films
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DOI：
10.1063/1.4730957
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发表时间：
2012-06-25
影响因子：
4
通讯作者：
Hellman, F.
中科院分区：
文献类型：
--
作者：
Baldasseroni, C.;Bordel, C.;Hellman, F.
利用X射线磁圆二色性和光电子发射电子显微镜研究了无帽和帽外延FeRh薄膜中温度驱动反铁磁（AF）到铁磁（FM）相变过程中铁磁畴的演化. AF和FM相的共存被证明在整个广泛的过渡和成核，生长和聚结的不同阶段直接成像。FM相形核成单畴岛，单个核的转变宽度比宏观平均的转变宽度更尖锐。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4730957]
The evolution of ferromagnetic (FM) domains across the temperature-driven antiferromagnetic (AF) to FM phase transition in uncapped and capped epitaxial FeRh thin films was studied by x-ray magnetic circular dichroism and photoemission electron microscopy. The coexistence of the AF and FM phases was evidenced across the broad transition and the different stages of nucleation, growth, and coalescence were directly imaged. The FM phase nucleates into single domain islands and the width of the transition of an individual nucleus is sharper than that of the transition in a macroscopic average. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4730957]