Magnetostructural Behavior in (110) Europium Films

Journal Article · Mon May 18 04:00:00 EDT 2009 · J. Appl. Phys 103:07B332,2008

OSTI ID:953143

Dumensil, K; Dufour, C; Toney, M F

High resolution and grazing incidence x-ray scattering experiments have been performed to investigate the magnetostructural coupling in a 750 nm thick (110) europium film. Coexisting, distorted structural domains have been observed over approximately 15 K below the magnetic ordering temperature. In agreement with a previous magnetic study, the relative proportions for these domains vary strongly with temperature, which is not the case in bulk europium. Moreover, the temperature dependence of lattice parameters in the different domains is hysteretic. This may be related to a clamping effect of the Eu lattice to the substrate, and may play a key role in the hysteretic magnetic behavior, previously observed for the helices with different propagation vectors. In using the grazing incidence configuration, we have observed that the structural characteristics are nonhomogeneous with the film depth, the dominant structural domain being different in the top and bottom parts of the film.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 953143
• Report Number(s): SLAC-REPRINT-2009-141
• Journal Information: J. Appl. Phys 103:07B332,2008, Journal Name: J. Appl. Phys 103:07B332,2008 Journal Issue: 7 Vol. 103; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL STRUCTURE
EUROPIUM
FILMS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
Other
PHYS
TEMPERATURE DEPENDENCE