We have investigated structural and functional properties of (110) La2∕3Ca1∕3MnO3 films grown on (110) SrTiO3 substrates. We have observed that there is an anisotropic in-plane lattice strain relaxation with faster relaxation along the [1−10] direction than along the [001] one, which leads to an anisotropic in-plane stress that evolves gradually with film thickness. The resultant anisotropy of the magnetoelastic energy imposes the [001] direction to be the in-plane magnetic easy axis and the strength of the in-plane magnetic anisotropy can be tuned by varying film thickness.
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Infante et al. (2008) studied this question.
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