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.
Researchers at National Taiwan University have developed a new type of spintronic device that mimics how synapses work in the brain—offering a path to more energy-efficient and accurate artificial intelligence systems.
Condensed Matter
May 14, 2025
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54
The rules about magnetic order may need to be rewritten. Researchers have discovered that chromium selenide (Cr2Se3)—traditionally non-magnetic in bulk form—transforms into a magnetic material when reduced to atomically thin ...
Condensed Matter
May 8, 2025
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82
Recently, a group of researchers discovered a novel way to achieve spin-valve effects using kagome quantum magnets.
Condensed Matter
Apr 30, 2025
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64
What if doctors could guide life-saving treatments through the body using only a magnet? An interdisciplinary collaboration at the University of Pittsburgh's Swanson School of Engineering is bringing that concept closer to ...
Bio & Medicine
Apr 29, 2025
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51
When an electric current passes through some materials, it generates a voltage perpendicular to the direction in which the current is flowing and of an applied magnetic field. This physical phenomenon, known as the anomalous ...
Traditionally, magnetic materials have been divided into two main categories: ferromagnets and antiferromagnets. Over the past few years, however, physicists have uncovered the existence of altermagnets, a new type of magnetic ...
An international research team led by Mayukh Kumar Ray, Mingxuan Fu, and Satoru Nakatsuji from the University of Tokyo, along with Collin Broholm from Johns Hopkins University, has discovered the anomalous Hall effect in ...
Condensed Matter
Apr 18, 2025
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99
A study by researchers from the University of British Columbia's Blusson Quantum Matter Institute (UBC Blusson QMI) has found a rare form of one-dimensional quantum magnetism in the metallic compound Ti4MnBi2, offering evidence ...
Condensed Matter
Apr 17, 2025
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64
An international team of researchers has developed a new method for parameterizing machine-learning interatomic potentials (MLIP) to simulate magnetic materials, making the prediction of their properties much more reliable ...
Condensed Matter
Apr 16, 2025
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42
A new study shows that electron spins—tiny magnetic properties of atoms that can store information—can be protected from decohering (losing their quantum state) much more effectively than previously thought, simply by applying ...
Quantum Physics
Apr 10, 2025
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