Abstract
In this work we use magnetic resonant x-ray diffraction to study the magnetic properties of a 1.5 µm EuTe film and an EuTe / PbTe superlattice (SL). The samples were grown by molecular beam epitaxy on (111) oriented BaF 2 substrates. The measurements were made at the Eu L 2 absorption edge, taking profit of the resonant enhancement of more than two orders in the magnetically diffracted intensity. At resonance, high counting rates above 11000 cps were obtained for the 1.5 µm EuTe film, allowing to check for the type II antiferromagnetic order of EuTe . An equal population of the three possible in-plane magnetic domains was found. The EuTe / PbTe SL magnetic peak showed a satellite structure, indicating the presence of magnetic correlations among the 5 ML (monolayers) EuTe layers across the 15 ML PbTe non-magnetic spacers. The temperature dependence of the integrated intensities of the film and the SL yielded different Nèel temperatures T N . The lower T N for the SL is explained considering the higher influence of the surface atoms, with partial bonds lost.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
