Observation of a temperature dependent asymmetry in the domain structure of a Pd-doped FeRh epilayer
Observation of a temperature dependent asymmetry in the domain structure of a Pd-doped FeRh epilayer
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DOI：
10.1088/1367-2630/16/11/113073
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发表时间：
2014-11-26
影响因子：
3.3
通讯作者：
Langridge, Sean
中科院分区：
文献类型：
--
作者：
Kinane, C. J.;Loving, M.;Langridge, Sean
Using x-ray photoelectron emission microscopy we have observed the coexistence of ferromagnetic and antiferromagnetic phases in a (3 at%) Pd-doped FeRh epilayer. By quantitatively analyzing the resultant images we observe that as the epilayer transforms there is a change in magnetic domain symmetry from predominantly twofold at lower temperatures through to an equally weighted combination of both four and twofold symmetries at higher temperature. It is postulated that the lowered symmetry Ising-like nematic phase resides at the near-surface of the epilayer. This behavior is different to that of undoped FeRh suggesting that the variation in symmetry is driven by the competing structural and electronic interactions in the nanoscale FeRh film coupled with the effect of the chemical doping disorder.
