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"Isolated" DyO+ Embedded in a Ceramic Apatite Matrix Featuring Single-Molecule Magnet Behavior with a High Energy Barrier for Magnetization Relaxation

DOI: 10.1002/anie.201706391 DOI Help

Authors: Pavel E. Kazin (Lomonosov Moscow State University) , Mikhail A. Zykin (Moscow State University) , Valentina V. Utochnikova (Moscow State University) , Oxana V. Magdysyuk (Diamond Light Source) , Alexander V. Vasiliev (Moscow State University) , Yan V. Zubavichus (National Research Centre “Kurchatov Institute”) , Walter Schnelle (Max-Planck-Institut fuer Chemische Physik fester Stoffe) , Claudia Felser (Max-Planck-Institut fuer Chemische Physik fester Stoffe) , Martin Jansen (Max-Planck-Institut fuer Festkoerperforschung)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie International Edition

State: Published (Approved)
Published: September 2017

Abstract: Meeting the challenges of Moore´s Law, predicting ambitious miniaturization rates of integrated circuits, requires to go beyond the traditional top down approaches, and to employ synthetic chemistry methods, to use bottom-up techniques. During the recent decades, it has been demonstrated that open shell coordination compounds may exhibit intra-molecular spontaneous magnetization, thus offering promising prospects for storage and processing of digital information. Against this background we regarded it rewarding to implement similar magnetic centers into a ceramic material, which would provide better long term mechanical and chemical durability. Here we present new robust inorganic compounds containing separate DyO+ ions in an apatite matrix, which behave like single-molecule magnets. The materials exhibit a blocking temperature of 11 K and an energy barrier for spin reversal of a thousand cm-1 which is among the highest values ever achieved.

Journal Keywords: single-molecule magnet; Dysprosium; apatite; magnetic properties; Luminescence

Subject Areas: Chemistry, Materials

Technical Areas: