Magnetic systems, as physical systems, are assemblies of magnetic moments (spins or orbital moments) interacting via exchange, dipolar, or relativistic (e.g., Dzyaloshinskii–Moriya) interactions, often modeled on lattices or in continuum field theories. They encompass ferromagnets, antiferromagnets, ferrimagnets, spin glasses, and frustrated magnets, and are described microscopically by Hamiltonians such as the Heisenberg, Ising, or Hubbard models. Key properties include magnetic ordering, phase transitions, domain formation, and collective excitations (spin waves, magnons). Magnetic systems are central to studying critical phenomena, symmetry breaking, and quantum many-body effects, and underpin technologies in data storage, spintronics, and magnetic sensing.
Synthetic antiferromagnets are carefully engineered magnetic materials made up of alternating ferromagnetic layers with oppositely aligned magnetic moments, separated by a non-magnetic spacer. These materials can display ...
A new study published in the journal One Earth reveals that the way ecosystems collapse—abruptly or gradually—may depend on internal complexity, much like how magnetic materials behave under stress.
Earth Sciences
Jul 18, 2025
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Is it wizardry? Physicists at the University of Konstanz have succeeded in changing the properties of a material in a non-thermal way with the help of light and magnons. The new process is not only promising for information ...
Quantum Physics
Jul 16, 2025
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A powerful new method to control magnetic behavior in ultra-thin materials could lead to faster, smaller and more energy-efficient technologies, a study suggests.
Condensed Matter
Jul 14, 2025
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For decades, ferromagnetic materials have driven technologies like magnetic hard drives, magnetic random access memories and oscillators. But antiferromagnetic materials, if only they could be harnessed, hold out even greater ...
General Physics
Jul 10, 2025
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146
Researchers from the Faculty of Physics at the University of Warsaw and the University of British Columbia have described how a so-called lone spinon—an exotic quantum excitation that is a single unpaired spin—can arise ...
Condensed Matter
Jul 7, 2025
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Devices taking advantage of the collective quantum behavior of spin excitations in magnetic materials—known as magnons—have the potential to improve quantum computing devices. However, using magnons in quantum devices ...
Superconductivity
Jun 30, 2025
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What if electricity and magnetism, usually considered as separate or even competing forces in materials, could actually work together in harmony?
Quantum Physics
Jun 26, 2025
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Magnetic-superconducting hybrid systems are key to unlocking topological superconductivity, a state that could host Majorana modes with potential applications in fault-tolerant quantum computing. However, creating stable, ...
Superconductivity
Jun 26, 2025
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25
Chemists from The University of Manchester and The Australian National University (ANU) have engineered a new type of molecule that can store information at temperatures as cold as the dark side of the moon at night, with ...
Nanophysics
Jun 25, 2025
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