AVS 64th International Symposium & Exhibition
    Magnetic Interfaces and Nanostructures Division Tuesday Sessions
       Session MI+2D+AC+SA+SS-TuM

Paper MI+2D+AC+SA+SS-TuM12
Depth-Dependent Measurement of Atomic Valence and Magnetization in La0.7Sr0.3MnO3 Magnetic Thin Films

Tuesday, October 31, 2017, 11:40 am, Room 11

Session: Novel Magnetic Order at Interfaces
Presenter: Mikel Holcomb, West Virginia University
Authors: M.B. Holcomb, West Virginia University
R. Trappen, West Virginia University
S. Kumari, West Virginia University
N. Mottaghi, West Virginia University
S. Yousefi Sarraf, West Virginia University
C.-Y. Huang, West Virginia University
G. Cabrera, West Virginia University
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Magnetic thin films often lose their magnetic order and even bulk materials can have significant deviations of the magnetic order and other properties near surfaces and interfaces. In strongly correlated oxides, there are many competing parameters affecting the material properties, complicating the understanding of these systems. We utilize a combined approach of bulk and surface sensitive techniques measuring many film thicknesses to back out layer-by-layer properties in La0.7Sr0.3MnO3 (LSMO) thin films. Strong changes from the bulk are observed for surfaces and interfaces. We will compare these models with theoretical predictions. LSMO has been widely proposed for diverse applications such as tunnel junctions and solid oxide fuel cells. Experimental support is provided by NSF (DMR-1608656). Theoretical support is provided by DoE (DE- SC0016176).