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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
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: