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Showing 1–5 of 5 results
Advanced filters: Author: D. Pomaranski Clear advanced filters

  • Frustrated systems display rich behaviour due to unsatisfied competing interactions. Here, the authors report extended frustration by introducing controlled topological defects into square artificial spin ice lattices, demonstrating the potential of lattice topology to induce frustration.

    • Jasper Drisko
    • Thomas Marsh
    • John Cumings
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • A number of rare-earth pyrochlore materials are experimental realizations of spin ice, a magnetic state that shares a number of similarities with conventional water ice. Diffuse neutron scattering experiments now show that oxygen vacancies strongly affect the dynamics of monopole excitations in the spin-ice material Y2Ti2O7−δ.

    • G. Sala
    • M. J. Gutmann
    • J. P. Goff
    Research
    Nature Materials
    Volume: 13, P: 488-493

  • Coherent control of plasmon wavepackets is essential for quantum information processing using flying electron qubits. Here, the authors demonstrate a method to isolate and select electron channels contributing to a plasmon using a cavity formed by local constrictions, enabling precise control of plasmon eigenstates.

    • Shintaro Takada
    • Giorgos Georgiou
    • Nobu-Hisa Kaneko
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • The development of electronic flying qubits requires the ability to generate and control single-electron excitations. Here the authors demonstrate quantum coherence of ultrashort single-electron plasmonic pulses in an electronic Mach-Zehnder interferometer, revealing a non-adiabatic regime at high frequencies.

    • Seddik Ouacel
    • Lucas Mazzella
    • Christopher Bäuerle
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Early specific-heat measurements of the archetypal spin ice Dy2Ti2O7 showed a residual entropy at low temperatures similar to that found in water ice. A technique exploiting slow thermal equilibration now reveals an absence of this entropy—calling into question the nature of Dy2Ti2O7 at low temperatures.

    • D. Pomaranski
    • L. R. Yaraskavitch
    • J. B. Kycia
    Research
    Nature Physics
    Volume: 9, P: 353-356