Scaling of anomalous hall effect in amorphous CoFeB Films with accompanying quantum correction
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ArticleKAUST Department
Nanofabrication Core LabDate
2015-05-08Online Publication Date
2015-05-08Print Publication Date
2015-07Permanent link to this record
http://hdl.handle.net/10754/552758
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Scaling of anomalous Hall effect in amorphous CoFeB films with thickness ranging from 2 to 160 nm have been investigated. We have found that the scaling relationship between longitudinal (ρxx) and anomalous Hall (ρAH) resistivity is distinctly different in the Bloch and localization regions. For ultrathin CoFeB films, the sheet resistance (Rxx) and anomalous Hall conductance (GAH) received quantum correction from electron localization showing two different scaling relationships at different temperature regions. In contrast, the thicker films show a metallic conductance, which have only one scaling relationship in the entire temperature range. Furthermore, in the dirty regime of localization regions, an unconventional scaling relationship View the MathML sourceσAH∝σxxα with α=1.99 is found, rather than α=1.60 predicted by the unified theory.Citation
Scaling of anomalous hall effect in amorphous CoFeB Films with accompanying quantum correction 2015 Solid State CommunicationsPublisher
Elsevier BVJournal
Solid State CommunicationsAdditional Links
http://linkinghub.elsevier.com/retrieve/pii/S0038109815001623ae974a485f413a2113503eed53cd6c53
10.1016/j.ssc.2015.05.001