Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers

Dong Wook Kim

doi:10.1016/j.ssc.2006.01.017

Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers

Dong Wook Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A pulsed laser deposition technique was used to grow ferromagnetic La _0.7Sr_0.3MnO₃ (LSMO) films on antiferromagnetic La_0.33Ca_0.67MnO₃ (LCMO) and Pr _0.7Ca_0.3MnO₃ (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.

Original language	English
Pages (from-to)	545-548
Number of pages	4
Journal	Solid State Communications
Volume	137
Issue number	10
DOIs	https://doi.org/10.1016/j.ssc.2006.01.017
State	Published - Mar 2006

Keywords

A. Magnetic films and multilayers
B. Epitaxy
D. Electronic transport

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10.1016/j.ssc.2006.01.017

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title = "Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers",

abstract = "A pulsed laser deposition technique was used to grow ferromagnetic La 0.7Sr0.3MnO3 (LSMO) films on antiferromagnetic La0.33Ca0.67MnO3 (LCMO) and Pr 0.7Ca0.3MnO3 (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.",

keywords = "A. Magnetic films and multilayers, B. Epitaxy, D. Electronic transport",

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AU - Kim, Dong Wook

PY - 2006/3

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N2 - A pulsed laser deposition technique was used to grow ferromagnetic La 0.7Sr0.3MnO3 (LSMO) films on antiferromagnetic La0.33Ca0.67MnO3 (LCMO) and Pr 0.7Ca0.3MnO3 (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.

AB - A pulsed laser deposition technique was used to grow ferromagnetic La 0.7Sr0.3MnO3 (LSMO) films on antiferromagnetic La0.33Ca0.67MnO3 (LCMO) and Pr 0.7Ca0.3MnO3 (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.

KW - A. Magnetic films and multilayers

KW - B. Epitaxy

KW - D. Electronic transport

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DO - 10.1016/j.ssc.2006.01.017

M3 - Article

AN - SCOPUS:32844458769

SN - 0038-1098

VL - 137

SP - 545

EP - 548

JO - Solid State Communications

JF - Solid State Communications

IS - 10

ER -

Interfacial spin interactions of ferromagnetic and antiferromagnetic manganite bilayers

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Keywords

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