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PRESSACCO, F. UHLÍŘ, V. GATTI, M. BENDOUNAN, A. FULLERTON, E. SIROTTI, F.
Originální název
Stable room-temperature ferromagnetic phase at the FeRh(100) surface
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Interfaces and low dimensionality are sources of strong modifications of electronic, structural, and magnetic properties of materials. FeRh alloys are an excellent example because of the first-order phase transition taking place at ~400 K from an antiferromagnetic phase at room temperature to a high temperature ferromagnetic one. It is accompanied by a resistance change and volume expansion of about 1%. We have investigated the electronic and magnetic properties of FeRh(100) epitaxially grown on MgO by combining spectroscopies characterized by different probing depths, namely X-ray magnetic circular dichroism and photoelectron spectroscopy. We find that the symmetry breaking induced at the Rh-terminated surface stabilizes a surface ferromagnetic layer involving five planes of Fe and Rh atoms in the nominally antiferromagnetic phase at room temperature. First-principles calculations provide a microscopic description of the structural relaxation and the electron spin-density distribution that support the experimental findings.
Klíčová slova
Circular-dichroism; Oxide interfaces; FeRh alloy; Magnetization; Photoemission
Autoři
PRESSACCO, F.; UHLÍŘ, V.; GATTI, M.; BENDOUNAN, A.; FULLERTON, E.; SIROTTI, F.
Vydáno
3. 3. 2016
Nakladatel
Springer Nature
ISSN
2045-2322
Periodikum
Scientific Reports
Ročník
6
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
Strany do
9
Strany počet
URL
https://www.nature.com/articles/srep22383
Plný text v Digitální knihovně
http://hdl.handle.net/11012/179547
BibTex
@article{BUT133850, author="Frederico {Pressacco} and Vojtěch {Uhlíř} and Matteo {Gatti} and A. {Bendounan} and E.E. {Fullerton} and F. {Sirotti}", title="Stable room-temperature ferromagnetic phase at the FeRh(100) surface", journal="Scientific Reports", year="2016", volume="6", number="1", pages="1--9", doi="10.1038/srep22383", issn="2045-2322", url="https://www.nature.com/articles/srep22383" }