Phase Reconstruction of a Cu(001) Seed Layer from $\textit{in situ}$ Polarized Neutron Reflectometry Data using Fe Reference Layers

TL;DR

This paper demonstrates a method to reconstruct the phase of a Cu(001) seed layer using in situ polarized neutron reflectometry with Fe reference layers, enabling accurate scattering density analysis.

Contribution

It introduces a novel application of the reference layer method with Fe layers for phase reconstruction in neutron reflectometry.

Findings

Successful phase retrieval of Cu(001) seed layer

Comparison of two reference layer approaches

Agreement with traditional fitting results

Abstract

The reconstruction of the complex reflection coefficient obtained by in situ Polarized Neutron Reflectometry is presented. Using the reference layer method, with a magnetic Fe layer, the phase information of the underlying Cu(001) seed layer sample structure is successfully retrieved and its scattering length density is calculated and compared with results obtained from traditional fitting. Two different reference layer approaches for retrieving the phase information are compared.