Ferrimagnetic ordering of single crystal Fe1-xGax thin films

Journal Article · Mon Oct 19 00:00:00 EDT 2009 · JOURNAL OF VACUUM SCIENCE&TECHNOLOGY A

OSTI ID:988864

McClure, A; Arenholz, E; Idzerda, Y U

Molecular beam epitaxy was used to deposit body centered cubic single crystal Fe{sub 1-x}Ga{sub x} thin films on MgO(001) and ZnSe/GaAs(001) substrates well beyond the bulk stability concentration of about 28%. The crystal quality of the substrate surface and each deposited layer was monitored in situ by reflection high energy electron diffraction. The magnetization of the samples as a function of Ga is found to decrease more rapidly than a simple dilution effect, and element-specific x-ray magnetic circular dichroism ascribes this trend to a decrease in the Fe moment and an induced moment in the Ga that is antialigned to the Fe moment.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Advanced Light Source Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 988864
• Report Number(s): LBNL-3931E; JVTAD6; TRN: US201019%%184
• Journal Information: JOURNAL OF VACUUM SCIENCE&TECHNOLOGY A, Journal Name: JOURNAL OF VACUUM SCIENCE&TECHNOLOGY A; ISSN 0734-2101
• Country of Publication: United States
• Language: English

Related Subjects

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BCC LATTICES
DILUTION
ELECTRON DIFFRACTION
MAGNETIC CIRCULAR DICHROISM
MAGNETIZATION
MOLECULAR BEAM EPITAXY
MONOCRYSTALS
REFLECTION
STABILITY
SUBSTRATES
THIN FILMS