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Science Tokyo researchers have demonstrated reliable nanoscale control of magnetic polarization in multiferroic materials by manipulating them with electric fields rather than currents. This breakthrough offers a pathway to non-volatile memory devices that significantly reduce the energy consumption and heat generation associated with current-based writing methods in data centers and AI infrastructure. The ability to visualize and control these mechanisms at 190 nm scales represents a critical advancement for developing next-generation, low-power storage solutions essential for scaling quantum-classical hybrid systems and large-scale computing.

Source coveringQuantum Zeitgeist

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Science Tokyo details nanoscale control of magnetic polarization

Quantum ZeitgeistSeptember 5, 20263 min read

Science Tokyo researchers achieved reliable reversal of magnetization in 190 nm structures of BiFe₀.₉Co₀.₁O₃, a multiferroic material offering potential for low-power data storage.

Researchers from Science Tokyo have fabricated BFCO nanodots to directly observe how electric fields restructure polarization and reverse magnetization, a key step toward lower-energy data storage. The team reports demonstrating reliable magnetization reversal using electric fields instead of current, potentially solving a growing energy challenge posed by cloud computing, artificial intelligence, and data centers. Magnetic memories using this method are non-volatile, retaining information without power, and…

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