Cover Picture: Insertion of a Single‐Molecule Magnet inside a Ferromagnetic Lattice Based on a 3D Bimetallic Oxalate Network: Towards Molecular Analogues of Permanent Magnets (Chem. Eur. J. 6/2014). Issue 6 (3rd February 2014) - Clemente‐León, Miguel
Abstract The concept of mixing a highly anisotropic system with a soft magnet, which is the approach commonly used to fabricate permanent magnets with large magnetic hysteresis, can also be developed in the molecular world. Instead of preparing metallic alloys formed by 3d metals with anisotropic lanthanides (such as NdFe14B), a molecular approach was used to design a hybrid crystalline lattice formed by an anisotropic single molecule magnet (SMM) incorporated into a bimetallic oxalate 3D ferromagnetic network. Thanks to the antiferromagnetic interaction established between these two magnetic networks, a large increase in the coercive field has been observed at low temperatures. For more details, see the Full Paper on page 1669 ff. by M. Clemente‐León et al.