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

Journal Article · Wed Dec 31 23:00:00 EST 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3085765· OSTI ID:958971

Arenholz, Elke ^[1]; van der Laan, Gerrit ^[2]; Kemik, Nihan ^[3]; Yang, Fan ^[3]; Biegalski, Michael D ^[3]; Christen, Hans M ^[3]; Takamura, Yayoi ^[3]

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1. Lawrence Berkeley National Laboratory (LBNL)
2. Diamond Light Source, Chilton, Didcot, Oxfordshire
3. ORNL

The magnetic characteristics of La0.7Sr0.3MnO3 (LSMO) and La0.7Sr0.3FeO3 (LSFO) superlattices with 6 unit cell thick sublayers were determined using soft x-ray magnetic dichroism. The Mn moments in the LSMO layers can be aligned in any inplane direction by external magnetic fields of 0.3 T for temperatures down to 50 K. Independent of the LSMO magnetization direction, the Fe moments in the LSFO layer are always oriented perpendicular to the Mn moments due to the frustrated exchange coupling at the LSMO/LSFO interface. The transition temperature of the LSFO layer exceeds 400 K while the LSMO layers exhibit a Curie temperature of approximately 200 K.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 958971
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 7 Vol. 94; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CURIE POINT
DICHROISM
MAGNETIC FIELDS
MAGNETIZATION
SUPERLATTICES
TRANSITION TEMPERATURE