Magnon mechanism of Josephson coupling in superconductor-ferromagnet-superconductor structures

Zyuzin, A. Yu.

doi:10.1134/s0021364012190150

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Furthermore, the logarithmic decay of the correlations of phasonic displacements [42,43] prohibits a perfect longrange phasonic order. As a consequence it seems possible that the fast decay of the positional order is an equilibrium feature of two-dimensional quasicrystals that can only be avoided if the quasicrystal is stuck in a metastable state and the equilibrium phasonic excitations take too long to occur.…”

Section: Dislocations and Phason Relaxationmentioning

confidence: 99%

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Event-chain Monte Carlo simulations of the liquid to solid transition of two-dimensional decagonal colloidal quasicrystals

Martinsons

Hielscher

Kapfer

et al. 2019

J. Phys.: Condens. Matter

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In event-chain Monte Carlo simulations we model colloidal particles in two dimensions that interact according to an isotropic short-ranged pair potential which supports the two typical length scales present in decagonal quasicrystals. We investigate the assembled structures as we vary the density and temperature. Our special interest is related to the transition from quasicrystal to liquid. We find a one-step first-order melting transition without a pentahedratic phase as predicted within the KTHNY melting theory for quasicrystals. However, we discover that the slow relaxation of phasonic flips, i.e. rearrangements of the particles due to additional degrees of freedom in quasicrystals, changes the positional correlation functions such that structures with long-range orientational correlations but exponentially decaying positional correlations are observed.

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Section: Dislocations and Phason Relaxationmentioning

confidence: 99%

“…Single local rearrangements are referred to as phasonic flips. The correlation of phasonic displacements ϕ is expected to diverge as (ϕ(0) − ϕ(R)) 2 ∝ ln(R) with distance R in two-dimensional quasicrystals [42,43], i.e. perfect long-range phasonic order is not possible.…”

Section: Introductionmentioning

confidence: 99%