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Showing 1–8 of 8 results
Advanced filters: Author: D. Lotnyk Clear advanced filters

  • A study demonstrates that a range of different behaviours—from reversible, through weeping, to explosive—can be exhibited by a chemically homogeneous ceramic system by manipulating conditions of compatibility in unusual ways.

    • Hanlin Gu
    • Jascha Rohmer
    • Richard D. James
    Research
    Nature
    Volume: 599, P: 416-420

  • HAADF images of Zn-Sb-Bi (ZSB4) film annealed at 300 °C with heterojunction networks having spinodal-like decomposition morphologies. We reported a controllable multi-state in Bi-Zn2Sb3 alloys, including amorphous, intermediate metastable and stable phases, which is a promising candidate for multilevel storage technology. The detailed microstructural investigation confirmed the existence of spinodal-like decomposition caused by Bi-doping, and this can account for the crystallization behaviors and p–n type conversion in Zn-Sb-Bi. The results may offer a new insight into the design of novel chalcogenide-based materials for broad applications in various areas, for example, the ability to form p–n junctions could improve the performance of phase-change memory and thermoelectric devices and allow the direct electronic control of nonlinear optical devices.

    • Guoxiang Wang
    • Haizhou Shi
    • Rongping Wang
    ResearchOpen Access
    NPG Asia Materials
    Volume: 12, P: 1-13

  • Ferroelectric oxides have emerged as candidate materials for non-volatile data-storage applications, but they can be difficult to process. Researchers have now used a high-temperature deposition process to fabricate arrays of metal–ferroelectric–metal nanocapacitors with a density of 176 gigabits per square inch.

    • Woo Lee
    • Hee Han
    • Ulrich Gösele
    Research
    Nature Nanotechnology
    Volume: 3, P: 402-407

  • Superfluid 3He under confinement can be used as a model system for topological quantum matter, but few related measurements are reported. Here, the authors report on the thermal conduction of helium-3 in a micro-fabricated channel with unanticipated effects in both the normal and superfluid states.

    • D. Lotnyk
    • A. Eyal
    • J. M. Parpia
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-12

  • The A–B transition in superfluid 3He is a pure experimental model system to study first-order phase transitions in the early Universe. Tian et al. observe the path dependence of the supercooling of the A phase in a wide parameter range and provide explanations for the heterogeneous nucleation of the B phase.

    • Y. Tian
    • D. Lotnyk
    • J. M. Parpia
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9