2008
DOI: 10.1103/physrevb.77.014434
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Tuning the magnetic properties ofLaCoO3thin films by epitaxial strain

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Cited by 231 publications
(231 citation statements)
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“…Another thin film study by Fuchs et al connected structural distortions to the presence of ferromagnetic order, estimating that the Co-O-Co angle above which there can be ferromagnetism is approximately 160 • . [16,40] All of our data show Co-O-Co angles well above this value, with the minimum angle seen at 162.8 • .…”
Section: Discussionmentioning
confidence: 70%
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“…Another thin film study by Fuchs et al connected structural distortions to the presence of ferromagnetic order, estimating that the Co-O-Co angle above which there can be ferromagnetism is approximately 160 • . [16,40] All of our data show Co-O-Co angles well above this value, with the minimum angle seen at 162.8 • .…”
Section: Discussionmentioning
confidence: 70%
“…Thin film studies [16,18,40] have suggested that LCO thin films grown on certain substrates exhibit ferromagnetic long-range order, in particular when the substrate induces tensile stress at the interface with LCO. Sterbinsky et al reported that a 20 nm film of LCO deposited on a SrTiO 3 (STO) substrate had a significantly elongated in-plane Co-O bond length and a shortened out-of-plane bond length compared to the bulk value.…”
Section: Discussionmentioning
confidence: 99%
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“…Furthermore, strain engineering in these oxide heterostructures opens up routes for creating novel electronic phases [2][3][4]. An exciting example is the recent demonstration of biaxial tensile strain stabilizing an insulating ferromagnetic (FM) ground state in LaCoO 3 (LCO) [5][6][7][8][9][10][11][12][13][14]. Though LCO is a classic example of a correlated 3d transition metal perovskite oxide [15,16], FM correlation has never been observed for the bulk ground state where the Co 3+ ions exist in the so-called low spin (LS) state (total spin per Co S=0) [15].…”
Section: Introductionmentioning
confidence: 99%
“…The possibility to control magnetism in thin films and multilayers of perovskite oxides by epitaxial strain, [1][2][3] oxygen stoichiometry, 4-7 chemical substitution, 8,9 and substrate crystalline symmetry 10,11 has rendered such materials important model systems for fundamental studies of magnetic structure as well as attractive candidates for device applications. Advances in fabrication of complex oxide thin film nanostructures 12 and the recent development of novel tools for magnetic imaging with high spatial resolution have made the study of such systems on the nanometer length scale a realistic endeavor.…”
mentioning
confidence: 99%