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Possible origins of the magnetoresistance gain in colossal magnetoresistive oxide : Structure fluctuation and pinning effect on magnetic domain walls
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10.1063/1.3216589
/content/aip/journal/apl/95/9/10.1063/1.3216589
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/9/10.1063/1.3216589
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of crystal structure. (b) Temperature dependences of magnetization and resistivity. (c) Variation in the MD walls near . White/black lines shown by the white arrows represent the MD walls. (d) [001]-zone SAED patterns at various temperatures. Indexes are based on the orthorhombic setting with the lattice parameters , and ( being the lattice parameter of primitive perovskite).

Image of FIG. 2.
FIG. 2.

MD images at a low temperature : (a) (001) plane, (b) (110) plane, and (c) (−1,1,0) plane. Dashed lines indicate the twin boundaries.

Image of FIG. 3.
FIG. 3.

Changes in MD structures of {110} with twins of (110) and (−1,1,0) [(a)–(d)], and of the (001) plane [(e) and (f)] with applied magnetic field along [110]-axis.

Image of FIG. 4.
FIG. 4.

Magnetic component distributions in a twin of (110) and (−1,1,0) without external magnetic field (a) and with one of 150 Oe (b). Color wheel shows the magnetization direction in addition to white arrows. The longer arrow indicates the direction of applied magnetic field.

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/content/aip/journal/apl/95/9/10.1063/1.3216589
2009-09-02
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Possible origins of the magnetoresistance gain in colossal magnetoresistive oxide La0.69Ca0.31MnO3: Structure fluctuation and pinning effect on magnetic domain walls
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/9/10.1063/1.3216589
10.1063/1.3216589
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