A global non-analytical fit method for the complex lineshape analysis of Bi2Sr2CaCu2O8+δ
R. H. He, D. L. Feng
Abstract
The implementation of global non-analytical fit is exemplified by its application to the spectral analysis of the complex lineshape of Bi2Sr2CaCu2O8+δ at (π,0). It deals with properly a multi-level globality in the fitting parameters and efficiently the non-analytical evaluation of the fitting function, thus exhibiting a potential applicability to a wide range of systematic analysis task.
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