Impact of spin-nematic order on the lattice domains in thin films of iron-based superconductors
A. Cano
DOI 10.1103/PhysRevB.84.012504 · Physical Review B
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Abstract
The spin-nematic scenario proposed for the structural instability of iron-based superconductors is studied theoretically within a Ginzburg-Landau approach in epitaxial thin films. The transition temperature and the domains that appear due to the interface with the substrate are computed analytically by following a variational procedure. A crossover thickness l* is obtained separating the Kittel regime, in which the size of the domains changes with the square root of the film thickness l, from a distinct ultrathin regime in which the system tends to reach the single-domain state as l→0. The experimental observation of this crossover is therefore proposed as a direct probe of spin nematicity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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