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Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers

Title
Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers
Author
김동욱
Keywords
Magnetic films and multilayers; Epitaxy; Electronic transport
Issue Date
2006-03
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SOLID STATE COMMUNICATIONS, v. 137, No. 10, Page. 545-548
Abstract
A pulsed laser deposition technique was used to grow ferromagnetic La0.7Sr0.3MnO3 (LSMO) films on antiferromagnetic La0.33Ca0.67MnO3 (LCMO) and Pr0.7Ca0.3MnO3 (PCMO) films in bilayer forms. The LSMO film on the PCMO layer had a more elongated out-of-plane lattice than that on the LCMO layer. The former had a lower ferromagnetic transition temperature (320 K) than the latter (350 K). The enhanced low-temperature magnetoresistance of the LSMO/PCMO bilayer suggests that the spin frustration is stronger at this bilayer than in the LSMO/LCMO bilayer. These differences indicate that strain state and defect concentration play important roles in governing interfacial spin interactions.
URI
https://www.sciencedirect.com/science/article/pii/S0038109806000214http://repository.hanyang.ac.kr/handle/20.500.11754/107817
ISSN
0038-1098
DOI
10.1016/j.ssc.2006.01.017
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > ETC
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