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.
Deep within certain magnetic molecules, atoms arrange their spins in a spiral pattern, forming structures called chiral helimagnets. These helical spin patterns have intrigued researchers for years due to their potential ...
Condensed Matter
Mar 4, 2025
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Recently, a research team found a way to design a class of homochiral organometallic nanosheets that exhibit room-temperature multiferroic and topological nodes. Their study is published in Nano Letters.
Nanophysics
Mar 3, 2025
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Researchers from the Department of Physics have managed to experimentally develop a new magnetic state: a magneto-ionic vortex or "vortion." The research, published in Nature Communications, allows for an unprecedented level ...
Nanophysics
Mar 3, 2025
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A quantum "miracle material" could support magnetic switching, a team of researchers at the University of Regensburg and University of Michigan has shown.
Condensed Matter
Feb 19, 2025
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When it comes to layered quantum materials, current understanding only scratches the surface; so demonstrates a new study from the Paul Scherrer Institute PSI. Using advanced X-ray spectroscopy at the Swiss Light Source SLS, ...
Condensed Matter
Feb 18, 2025
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A research group recently discovered the disappearance of nonreciprocal second harmonic generation (SHG) in MnPSe₃ when integrated into a two-dimensional (2D) antiferromagnetic MnPSe₃/graphene heterojunction.
Nanophysics
Feb 14, 2025
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145
One major category of the next generation of energy-efficient microelectronic devices and information processing technologies will likely be based on "spintronics," which leverage both an electron's charge and its spin—the ...
Condensed Matter
Feb 12, 2025
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The rapid advancement of technologies like artificial intelligence (AI) and the Internet of Things (IoT) has heightened the demand for high-speed, energy-efficient memory devices. Traditional memory technologies often struggle ...
Condensed Matter
Feb 10, 2025
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Multiferroic materials, in which electric and magnetic properties are combined in promising ways, will be the heart of new solutions for data storage, data transmission, and quantum computers. Meanwhile, understanding the ...
Condensed Matter
Feb 6, 2025
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AI transformational impact is well under way. But as AI technologies develop, so too does their power consumption. Further advancements will require AI chips that can process AI calculations with high energy efficiency. This ...
Condensed Matter
Feb 6, 2025
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