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Showing 1–4 of 4 results
Advanced filters: Author: P. Henelius Clear advanced filters

  • The ground state of yttrium-doped lithium holmium fluoride, a realisation of dilute magnetic dipoles, has been the subject of much debate. Biltmo and Henelius demonstrate theoretically that the system freezes and exhibits extremely slow and unusual glassy dynamics.

    • A. Biltmo
    • P. Henelius
    Research
    Nature Communications
    Volume: 3, P: 1-5

  • A classical Hamiltonian captures key properties of spin ice materials such as residual entropy and fractionalized excitations. Here, the authors present experimental results of the polarization transition that motivate a Hamiltonian with lattice distortions, which predicts an intermediate magnetization state and competing ground state orders.

    • R. A. Borzi
    • F. A. Gómez Albarracín
    • S. A. Grigera
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • In the highly degenerate spin-ice ground state, flipped spins give rise to magnetic charges, or monopoles, which form a measurable current in a magnetic field. The low-temperature relaxation dynamics of spin-ice materials now reveal that defects can impede monopole flow—creating a magnetic analogue of electrical resistance.

    • H. M. Revell
    • L. R. Yaraskavitch
    • J. B. Kycia
    Research
    Nature Physics
    Volume: 9, P: 34-37

  • Competing interactions in frustrated magnets give rise to complex emergent phenomena, which challenge a full microscopic understanding but invite comparison to other systems. Bovo et al. find an analogy to classical gases and identify special temperatures that reveal fine details of the microscopic Hamiltonian.

    • L. Bovo
    • M. Twengström
    • P. Henelius
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8