Magnetic Circular Dichroism in Two-Photon Photoemission

Hild, K. (author)

Maul, J. (author)

Schoenhense, G. (author)

Elmers, H. J. (author)

Amft, Martin (author): Uppsala universitet,Institutionen för fysik och materialvetenskap

Oppeneer, Peter M. (author): Uppsala universitet,Institutionen för fysik och materialvetenskap

(creator_code:org_t)

2009
2009
English.
In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 102:5, s. 057207-

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

We report the observation of magnetic circular dichroism (MCD) in two-photon photoemission (2PPE). The Heusler alloys Ni2MnGa and Co2FeSi were investigated by excitation with femtosecond laser light, showing MCD asymmetries of A = (3.5 +/- 0.5) x 10(-3) for Ni2MnGa and of A = (2.1 +/- 1.0) x 10(-3) for Co2FeSi, respectively. A theoretical explanation is provided based on local spin-density calculations for the magnetic dichroic response; the computed 2PPE MCD agrees well with the experiment. The observed 2PPE magnetic contrast represents an interesting alternative for future time-resolved photoemission studies on surface magnetism practicable in the laboratory.

By the author/editor: Hild, K.; Maul, J.; Schoenhense, G.; Elmers, H. J.; Amft, Martin; Oppeneer, Peter ...

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.