Abstract
A 55 Mn nuclear magnetic resonance study of a layered perovskite La 1.4 Sr 1.6 Mn 2 O 7 is reported. Between 4.2 K and the magnetic ordering temperature, 100 K , zero field spin echo spectra consist of signals corresponding to the double-exchange (DE) states and charge localized Mn 3+ , Mn 4+ states. This indicates occurrence of electronic and magnetic phase segregation into ferromagnetic metallic and ferromagnetic insulating regions. Above 100 K a DE line is observed, revealing the presence of long lived metallic clusters. The relation of results to magnetoresistive properties of the compound is discussed.
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.
