Work

Element-specific magnetometry of EuS nanocrystals

Year: 2009

Type: article

Abstract: A soft x-ray absorption and x-ray magnetic circular dichroism (XMCD) study of the ferromagnetism in solution-grown EuS nanocrystals (NCs) is reported. The absorption edges of Eu M(5) and M(4), S K, O K, and P K were probed to determine elementally specific contributions to the magnetism of EuS NCs. Differential spin absorption was observed by XMCD at the Eu M(5,4) edges confirming the presence of a magnetic moment on the Eu(2+) 4f shell. No dichroic signal was observed for S, O, or P. Vibrating sample magnetometry of ensembles of NCs shows ferromagnetic properties consistent with the XMCD studies.

Source: Applied Physics Letters

DOI: 10.1063/1.3251777

Authors: Rachel S. Selinsky, David J. Keavney, Matthew J. Bierman, Song Jin

Institutions: University of Wisconsin–Madison, Argonne National Laboratory, Advanced Photon Source

Language: English

Topic: X-ray Spectroscopy and Fluorescence Analysis

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze