Antiferroelectric hafnia down to the 2D limit

Más de Materia condensada ese día

• Física/Materia condensada26 de sept de 2026

  Colossal magnetic tunability of excitons in 2D van der Waals magnetic semiconductor CrSBr

  Here, we report the observation of remarkably strong magneto-optical effects in the 2D magnetic semiconductor CrSBr that allow probing its magnetic order with unprecedented sensitivity.

  Rafał Komar, M. Goryca, A. Łopion y 12 más — Nature Communications

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• Física/Materia condensada26 de sept de 2026

  Jamming-controlled stochasticity in metal-insulator switching

  Sub-threshold currents erase the short-term memory defined by the nano-domain distribution, recovering stochastic switching, thus offering a path for in-device learning.

  Nicolò D'Anna, Nareg Ghazikhanian, Katherine Matthews y 5 más — Nature Communications

  Revista con revisión por paresUso en el mundo real

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• Física/Materia condensada26 de sept de 2026

  Probing picosecond depairing currents in type-II superconductors

  Here we show that picosecond electrical pulses, which act on timescales too short for vortices to move, drive supercurrents up to the intrinsic depairing limit.

  E. Wang, M. Chavez-Cervantes, J. Satapathy y 8 más — Nature Physics

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• Física/Materia condensada26 de sept de 2026

  Two-dimensional topological quantum chemistry and catalog of topological materials

  We found 4073 topological or obstructed entries, including 905 topological insulators and 1003 obstructed atomic insulators, greatly expanding the library of such materials in two dimensions.

  Urko Petralanda, Yi Jiang, Hanqi Pi y 4 más — Science

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• Física/Materia condensada26 de sept de 2026

  Approaching Landauer’s limit in a single superconducting vortex memory bit

  Although our experimental method requires a steady sinusoidal drive incompatible with Landauer’s erasure protocol, our numerical analysis demonstrates that the work required for such bit manipulation (erasure) is within an order of magnitude of Landauer’s limit ($k_{B}Tln2$) at 4.2 K. These findings open possibilities for creating highly efficient memory elements that could be integrated with cryogenic quantum circuits or function as topological quantum computing qubits; thereby contributing to memory devices with lower energy consumption and mitigating the escalating global energy demand in the computing industry.

  Nofar Fridman, Itai Keren, Avia Noah y 6 más — Nature Communications

  Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo real

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