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Journal ArticleDOI

Framework-structured weak ferromagnets

Dan-Feng Weng, +2 more
- 23 May 2011 - 
- Vol. 40, Iss: 6, pp 3157-3181
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TLDR
This critical review provides an overview of the various framework-structured weak ferromagnets based on different grades of ligands (from mono-atom to three-atom-like ligands) and the relationships between structural features and the properties, rational employment of the ligands, andWeak ferromagnetic strategies for molecule-based magnets with exciting properties and applications.
Abstract
Framework-structured weak ferromagnets are new rising stars in molecule-based magnetic materials. The framework structures are powerful carriers for long-range ordering of spins. And weak ferromagnetism due to spin canting is an effective approach for magnets because of its frequent occurrence and desired spontaneous magnetization as long as the canting angle γ is large enough. In this critical review, we provide an overview of the various framework-structured weak ferromagnets based on different grades of ligands (from mono-atom to three-atom-like ligands). Particular emphasis is given to the relationships between structural features and the properties, rational employment of the ligands, and weak ferromagnetic strategies for molecule-based magnets with exciting properties and applications (273 references).

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Citations
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Solid-state principles applied to organic–inorganic perovskites: new tricks for an old dog

TL;DR: In this paper, the authors extend the classical concept of ionic tolerance factors to hybrid organic-inorganic materials and predict the existence of several hitherto undiscovered hybrid perovskite phases.
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Nanoporous Cobalt(II) MOF Exhibiting Four Magnetic Ground States and Changes in Gas Sorption upon Post-Synthetic Modification

TL;DR: The present stabilization of four magnetic ground states is unique in the field of metal-organic frameworks as well as the electrical conductivity of 1·2.7I2.
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Recent advances in the design of magnetic molecules for use as cryogenic magnetic coolants

TL;DR: In this article, a review outlines recent advances in the design of 3D-, 4f-, and 3d-4f type magnetic molecules for use as excellent cryogenic magnetic coolants based on the magnetocaloric effect (MCE), and the structure-magnetocaloric correlations of reported molecular coolants.
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Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications.

TL;DR: In this article, the authors provide an overview of different aspects of 2D MOF layered architectures such as topology, interpenetration, structural transformations, properties, and applications.
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Recent advances in guest effects on spin-crossover behavior in Hofmann-type metal-organic frameworks

TL;DR: In this article, a review of spin-crossover properties of Hofmann-type MOFs is presented, with an emphasis on the guest effect on their spin crossover properties, including dielectric constant, πππ interaction, hydrogen bonding interactions, weak X⋯M′ covalent bonding, and chemical reaction.
References
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Journal ArticleDOI

Multiferroic and magnetoelectric materials

TL;DR: A ferroelectric crystal exhibits a stable and switchable electrical polarization that is manifested in the form of cooperative atomic displacements that arises through the quantum mechanical phenomenon of exchange.
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Anisotropic Superexchange Interaction and Weak Ferromagnetism

TL;DR: In this paper, the Anderson theory of superexchange was extended to include spin-orbit coupling and the antisymmetric spin coupling suggested by Dzialoshinski from purely symmetry grounds and the symmetric pseudodipolar interaction were derived.
Journal ArticleDOI

A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics

TL;DR: In this paper, a thermodynamic theory of weak ferromagnetism of α-Fe 2 O 3, MnCO 3 and CoCO 3 is developed on the basis of landau's theory of phase transitions of the second kind.
Journal ArticleDOI

Multiferroics: a magnetic twist for ferroelectricity

TL;DR: It is found that even a weak magnetoelectric interaction can lead to spectacular cross-coupling effects when it induces electric polarization in a magnetically ordered state.
Journal ArticleDOI

Time‐Dependent Statistics of the Ising Model

TL;DR: In this paper, the effect of a uniform, time-varying magnetic field upon the Ising model is discussed, and the frequency-dependent magnetic susceptibility is found in the weak-field limit.
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