Size-Dependent Magnetism of Deposited Small Iron Clusters Studied by X-Ray Magnetic Circular Dichroism

Lau, J. Tobias; Föhlisch, Alexander; Nietubyć, R.; Reif, M.; Würth, W.

doi:10.1103/physrevlett.89.057201

Cited by 162 publications

(143 citation statements)

References 36 publications

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“…19,27 With the experimental techniques now available, nanowires and nanostructures may be deposited on magnetic and nonmagnetic surfaces in a controlled fashion, and their fundamental magnetic properties can be explored with the use of advanced experimental methods. [28][29][30][31][32][33][34] From the above discussions, it is quite evident that the magnetic interactions at the interface between Mn and Fe have a very rich variety depending on the geometry and local environment. Particularly, the study of the nanostructures of Mn supported on Fe is quite fascinating.…”

Section: Introductionmentioning

confidence: 99%

First-principles studies of complex magnetism in Mn nanostructures on the Fe(001) surface

et al. 2012

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The magnetic properties of Mn nanostructures on the Fe(001) surface have been studied using the noncollinear first-principles real space-linear muffin-tin orbital-atomic sphere approximation method within density-functional theory. We have considered a variety of nanostructures such as adsorbed wires, pyramids, and flat and intermixed clusters of sizes varying from two to nine atoms. Our calculations of interatomic exchange interactions reveal the long-range nature of exchange interactions between Mn-Mn and Mn-Fe atoms. We have found that the strong dependence of these interactions on the local environment, the magnetic frustration, and the effect of spin-orbit coupling lead to the possibility of realizing complex noncollinear magnetic structures such as helical spin spiral and half-skyrmion.

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Section: Introductionmentioning

confidence: 99%

First-principles studies of complex magnetism in Mn nanostructures on the Fe(001) surface

et al. 2012

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“…[7][8][9][10] While some of these properties can arise for the cluster itself and can be studied in the gas phase, in most practical cases the nanoclusters are in interaction with their environment. This interaction is often not well understood but can have important effects on the physical properties.…”

Section: Introductionmentioning

confidence: 99%

Matrix effects on the optical response of silver nanoclusters

Conus

Lecoultre

Rydlo

et al. 2006

The Journal of Chemical Physics

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We report absorption spectra for Ag 7 , Ag 9 , and Ag 11 in an argon matrix grown at a temperature of 28 K and compare them with previous spectra of the same species measured in matrices of argon grown at lower temperatures as well as in neon matrices. We discuss the discrepancies in the light of the matrix crystallinity and show that this leads to an understanding of the influence of the matrix on the optical response of small clusters.

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“…Combined with optical lasers X-ray spectroscopic and diffractive methods allow to study ultra fast photo induced dynamical processes from low energy IR activated dynamics to excitations in the optical and UV spectral range. The selectivity of X-ray spectroscopy enables to monitor the temporal evolution of few selected active sites without the background of a large number of surrounding atoms from a passive matrix, as resonant X-ray excitation yields atom specific and chemical state selective information 21,22,23,24 . Thus disperse systems, highly relevant in biology and chemistry, e.g.…”

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confidence: 99%