Magnetic structure of La0.7Sr0.3MnO3/La0.7Sr0.3FeO3 superlattices

Journal Article · Fri Jan 09 23:00:00 EST 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3085765· OSTI ID:951109

Arenholz, E; van der Laan, G; Yang, F; Kemik, N; Biegalski, M D; Christen, H M; Takamura, Y

Using x-ray magnetic dichroism we characterize the magnetic order in La{sub 0.7}Sr{sub 0.3}MnO{sub 3} (LSMO)/La{sub 0.7}Sr{sub 0.3}FeO{sub 3} (LSFO) superlattices with 6 unit cell thick sublayers. The LSMO layers exhibit a reduced Curie temperature compared to the bulk while antiferromagnetic order in the LSFO layers persists up to the bulk Neel temperature. Moreover, we find that aligning the LSMO magnetization by a magnetic field within the (001) surface plane leads to a reorientation of the Fe moments as well maintaining a perpendicular orientation of Fe and Mn moments. This perpendicular alignment is due to the frustrated exchange coupling at the LSMO/LSFO interface.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Advanced Light Source Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 951109
• Report Number(s): LBNL-1701E
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Vol. 94; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALIGNMENT
CURIE POINT
DICHROISM
MAGNETIC FIELDS
MAGNETIZATION
NEEL TEMPERATURE
ORIENTATION
SUPERLATTICES