Monte Carlo Study of the Interface Effects on the Magnetic Properties of the Magnetic/Nonmagnetic (M/NM) Layers

Razouk, A.; Sahlaoui, M.; Sajieddine, M.

doi:10.1007/s10948-011-1161-1

Cited by 3 publications

(1 citation statement)

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“…Interactions at surfaces and interfaces are important parameters for the behavior of layered materials and nanoparticles [10][11][12][13]. Surfaces with stronger exchange coupling (J s ) than bulk (J b ) have been studied theoretically and the surface is predicted to order at a higher temperature compared to bulk when the ratio J s /J b > 1.6 [14].…”

Section: Introductionmentioning

confidence: 99%

Reversed interface effects in amorphous FeZr/AlZr multilayers

et al. 2014

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We report an anomalous enhancement of the critical temperature (T c ) when the thickness (d) of the magnetic layer is decreased from 60 to 20Å in amorphous FeZr/AlZr multilayers. Further reduction of the thickness causes a decrease of T c , as expected by finite-size scaling, while the magnetic moment decreases monotonically for all values of d. The increase of the critical temperature is attributed to a reversed interface effect where local changes in the nearest-neighbor distance and coordination number gives a higher effective magnetic coupling at the interfaces compared to the interior of the layer. We have successfully described the results within a model where such interface effects are combined with finite-size scaling.

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