Are strain-induced effects truly strain induced? A comprehensive study of strained LCMO thin films

Joseph Dvorak; Y. U. Idzerda; S. B. Ogale; Sanjay Shinde; Tao Wu; T. Venkatesan; R. Godfrey; R. Ramesh

doi:10.1063/1.1845974

Are strain-induced effects truly strain induced? A comprehensive study of strained LCMO thin films

Joseph Dvorak, Y. U. Idzerda, S. B. Ogale, Sanjay Shinde, Tao Wu, T. Venkatesan, R. Godfrey, R. Ramesh

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

33 Scopus citations

Abstract

We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain.

Original language	English (US)
Article number	10C102
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1845974
State	Published - May 15 2005
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Are strain-induced effects truly strain induced? A comprehensive study of strained LCMO thin films",

abstract = "We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain.",

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AU - Dvorak, Joseph

AU - Idzerda, Y. U.

AU - Ogale, S. B.

AU - Shinde, Sanjay

AU - Wu, Tao

AU - Venkatesan, T.

AU - Godfrey, R.

AU - Ramesh, R.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain.

AB - We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain.

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Are strain-induced effects truly strain induced? A comprehensive study of strained LCMO thin films

Abstract

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