Disorder-induced antiferromagnetic to ferromagnetic transition in magneticoverlayers: (Fe,Mn)/W(001) as a case study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00357426" target="_blank" >RIV/68378271:_____/10:00357426 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Disorder-induced antiferromagnetic to ferromagnetic transition in magneticoverlayers: (Fe,Mn)/W(001) as a case study

Original language description

The magnetic phase stability of the random FexMn1-x monolayer on the bcc-W(001) substrate is studied from first-principles. The exchange interactions among two-types of magnetic atoms in the overlayer are estimated and used to construct the random classical two-dimensional Heisenberg Hamiltonian. The stability of such effective Hamiltonian is then studied with respect to a broad class of magnetic arrangements which include also possible spin-spiral structures. We have found that exchange interactions between Fe-spin are antiferromagnetic while those between Mn-spins are ferromagnetic over the whole concentration range. This pronounced frustration leads to a complex behavior in which the c(2x2) antiferromagnetic state for Fe-monolayer goes over to complex incommensurate spin-spiral magnetic structures with increasing Mn-content. A spin-spiral state with a large period was found also for the Mn-monolayer case in agreement with a recent experiment.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

e-Journal of Surface Science and Nanotechnology

ISSN

1348-0391

e-ISSN

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Volume of the periodical

8

Issue of the periodical within the volume

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Country of publishing house

JP - JAPAN

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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