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Ferromagnetism

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...

Magnetism

Magnetism

Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...

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Updated: May 2, 2026

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Published on: July 14, 2021

Single-molecule magnet engineering: building-block approaches.

Kasper S Pedersen¹, Jesper Bendix, Rodolphe Clérac

¹CNRS, CRPP, UPR 8641, F-33600 Pessac, France. clerac@crpp-bordeaux.cnrs.fr.

Chemical Communications (Cambridge, England)

|March 15, 2014

Summary

This summary is machine-generated.

Researchers use molecular building blocks to control the structure and magnetic properties of single-molecule magnets (SMMs). This coordination chemistry approach offers a precise method for designing novel magnetic materials at the molecular level.

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Area of Science:

Coordination Chemistry
Materials Science
Magnetism

Background:

Controlling magnetic properties of materials relies on topological control of metal ion building blocks.
Traditional bulk magnets are difficult to tune, but coordination chemistry offers a way to engineer molecular magnets.
Single-molecule magnets (SMMs) are molecules with magnetic properties that can be precisely tuned.

Purpose of the Study:

To explore the use of molecular building blocks for directing the structure of metal ion complexes.
To investigate how these building blocks influence the magnetic properties of SMMs.
To highlight the assembly of predesigned molecular entities into higher nuclearity complexes for SMM behavior.

Main Methods:

Utilizing coordination chemistry principles to assemble metal ion complexes.
Employing predesigned molecular building blocks or modules.
Synthesizing higher nuclearity complexes from molecular entities.

Main Results:

Demonstrated that molecular building blocks can direct the structure of metal ion complexes.
Showcased the influence of these building blocks on the SMM behavior of the resulting complexes.
Highlighted the effectiveness of modular assembly for creating complex magnetic structures.

Conclusions:

The use of building blocks in coordination chemistry is an effective strategy for designing SMMs.
This modular approach allows for precise control over the structure and magnetic properties of molecular magnets.
Further development in this area promises advanced materials with tailored magnetic functionalities.