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Ionic size effect deformation on octahedrons in colossal magnetoresistance strain film
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Image of FIG. 1.
FIG. 1.

Top panel: average Mn–O bond lengths, . Bottom panel: the average oxygen disorders , fitted from -edge EXAFS at 11 and 84 K. The solid red circles and the open red circles are spectrums of LCMO system at 84 and 11 K, respectively. The blue solid diamonds and the open blue diamonds are spectrums of LBMO system at 84 and 11 K, respectively. The line connecting data points are for the guidance only.

Image of FIG. 2.
FIG. 2.

Schematic diagram of curve fittings for the pre-edge of the -edge at 73 K below of all thin films. Three Gaussian functions and an error function are used in the fitting procedure for each spectrum. The solid blue circles are data points. The green, red, and gray lines are fitted Gaussian functions and G1, G2, and G3 are correspondent peak positions. The dashed violet line is the error function background. The upper left inset is the schematic diagram of the splitting of energy levels under effects of the CF that splits the orbital and the strength of the MEI that polarizes the spin state of electronic structure can be qualitatively defined as the energy differences , , . The lower right inset is the square of differences of between the in-plane and the out-of-plane directions, .


Generic image for table
Table I.

List of the average Mn–O bond lengths , the average oxygen disorders , at 84 K, and the transition temperatures , for the LCMO and LBMO thin films with the various thicknesses.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ionic size effect deformation on MnO6 octahedrons in colossal magnetoresistance strain film