source:Phys.orgThe willingness of the 4f orbitals of lanthanide metals to participate in chemical reactions is as rare as their presence in Earth's crust. A recent study, however, witnessed the 4f orbital in a cerium-based compound actively participate in bond formation, triggering a unique chemical reaction.The researchers observed that a cerium-containing cyclic complex formed a 4f-covalent interaction, leading to a ring-opening isomerization from cyclopropene to allene. The findings are published in Nature Chemistry.Lanthanides are heavy, rare-earth metallic elements, occupying position...
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2025
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source:ACS PubicationsRare-earth adatoms on surfaces have been studied for potential atomic-scale magnetic storage, quantum sensing, and quantum computing applications. Despite accumulating experimental efforts, a comprehensive description of the electronic configurations of the adatoms remains elusive. Here, we investigate two charge states and several electronic configurations, including 5d and 6s valence shells, for a Sm adatom on a MgO substrate using multiconfigurational ab initio methods, for the possibility of using the Sm nuclear spin levels as qubits. For the configurations in a neutr...
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2025
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source:National Research University Higher School of EconomicsResearchers at HSE University and the Institute of Petrochemical Synthesis of the Russian Academy of Sciences have discovered a way to control both the color and brightness of the glow emitted by rare earth elements. Their luminescence is generally predictable—for example, cerium typically emits light in the ultraviolet range.However, the scientists have demonstrated that this can be altered. They created a chemical environment in which a cerium ion began to emit a yellow glow. The findings could contribute to the development of new...
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2025
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source:msnWestern Digital says it's created an initiative to retrieve rare earth metals from hard drives that are being cycled out of data centers.The tech company, best known for its digital storage products, says its Advanced Recycling and Rare Earth Material Capture Program has partnered with Microsoft and two other companies to reclaim rare earth metals including neodymium, dysprosium and praseodymium.Rare earth elements have taken on new significance amid the trade battles between the US and China. In response to President Donald Trump's imposition of soaring tariffs on products i...
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2025
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