The epitaxial growth of the LaCaMnO thin films with the CMR effects prepared by a new method: Precursor film sintering

Liu, Hui; Luo, Ying; Li, Ming

doi:10.1016/j.jcrysgro.2006.08.021

Cited by 11 publications

(3 citation statements)

References 14 publications

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“…Also, the MR value of the present LCMO film was much higher than the epitaxial film of the same composition grown on LAO substrate by a precursor film sintering, a CSD method. 40 The MR values in the present study are comparable or larger than those exhibited by similar films grown using other PVD or CSD techniques. 38,41 (2) Film of Half-Doped Pr 1Àx Ca x MnO 3 Charge ordering competes with double exchange, and promotes insulating behavior and antiferromagnetism.…”

Section: Resultssupporting

confidence: 71%

“…It should be noted that the temperature of maximum MR of the present LCMO film (250 K) was higher than that observed by Bae and Wang 34 (228 K) for LCMO film of the same composition on LAO substrate grown by sol–gel technique. Also, the MR value of the present LCMO film was much higher than the epitaxial film of the same composition grown on LAO substrate by a precursor film sintering, a CSD method 40 . The MR values in the present study are comparable or larger than those exhibited by similar films grown using other PVD or CSD techniques 38,41 …”

Section: Resultssupporting

confidence: 48%

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Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Jain

Bauer

Ronning

et al. 2008

Journal of the American Ceramic Society

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In thin films of rare‐earth manganites, RE1−xMxMnO3 (RE=rare earth, M=Ca, Sr, Ba), with mixed‐valence perovskite structure, the transport properties highly depend on the deposition technique, processing conditions, and the substrate used. Chemical solution deposition techniques provide many advantages, such as low cost, easy setup, and coating of large areas. However, the crystalline quality, uniformity, and reproducibility of the film depend on the reactivity of the chemical used for solution preparation. In this paper, we report a novel process to grow rare‐earth manganite films using low‐cost polymer‐assisted deposition technique. In this process, polymer controls the viscosity and binds metal ions, resulting in a homogeneous distribution of metal precursors in the solution and a uniform film. These solutions were stable, and crack‐free films were obtained using these solutions. In this paper, thin films of La1−xSrxMnO3, La1−xCaxMnO3, and Pr0.5Ca0.5MnO3 were grown on (001) LaAlO3 substrates. The La1−xSrxMnO3 and La1−xCaxMnO3 films were highly c‐axis oriented and epitaxial, and showed high magnetoresistance near their Curie temperature. Charge ordering was observed in the Pr0.5Ca0.5MnO3 film at 220 K and high magnetoresistance of nearly −100% was obtained at low temperatures. The structural, transport, and magnetic properties of these films were similar to those obtained for films grown by physical vapor deposition.

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Section: Resultssupporting

confidence: 71%

Section: Resultssupporting

confidence: 48%

Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Jain

Bauer

Ronning

et al. 2008

Journal of the American Ceramic Society

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“…Further, since the solution-deposited metal oxide films are often randomly polycrystalline and highly rough, they are considered unsuitable for hetero-epitaxial device applications. Nevertheless, more recently, alternative solution deposition methods, such as polymeric-assisted precursor deposition [13,14] and seed-layer-assisted CSD [15], have been reported that show a promise of obtaining manganite films with improved structural and physical properties.…”

Section: Introductionmentioning

confidence: 99%

Magnetic and transport properties of chemical solution deposited (100)-textured La_0.7Sr_0.3MnO₃and La_0.7Ca_0.3MnO₃nanocrystalline thin films

Kartopu¹,

Yalçın²,

Demiray³

2010

Phys. Scr.

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A study of the magnetic and electrical properties of (100)-oriented La0.7(Sr,Ca)0.3MnO3 thin films prepared by an optimized chemical solution deposition process on a (100) SrTiO3 single-crystal substrate is reported in this paper. The films were studied by high-resolution scanning electron microscopy, x-ray diffraction, vibrating sample magnetometer, ferromagnetic resonance and four-point-probe electrical measurements. A characteristic nanocrystalline texture with ∼15 nm crystallites is observed in both films. Remarkably, the resistivities of these films are three orders of magnitude smaller compared with unoptimized films grown even on the same substrate. The magnetotransport properties were determined as a function of temperature and applied field magnitude, and compared with bulk crystals and vacuum-deposited single crystalline (epitaxial) thin films as well as manganite nanostructures reported in the literature. Both films display large values of colossal magnetoresistance at around room temperature. Significantly, the magnetoresistance in (100) La0.7Sr0.3MnO3 thin film is observed to be highly linear even at low fields near the metal–insulator transition temperature. However, the dependence of these promising properties on the nanocrystal size remains to be explored.

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Effect of dispersant sodium dodecylbenzene sulfonate content on electrical transport properties of La0.67Ca0.33MnO3 ceramics

Tian

Hou

Wang

et al. 2023

J Mater Sci: Mater Electron

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The epitaxial growth of the LaCaMnO thin films with the CMR effects prepared by a new method: Precursor film sintering

Cited by 11 publications

References 14 publications

Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Magnetic and transport properties of chemical solution deposited (100)-textured La_0.7Sr_0.3MnO₃and La_0.7Ca_0.3MnO₃nanocrystalline thin films

Effect of dispersant sodium dodecylbenzene sulfonate content on electrical transport properties of La0.67Ca0.33MnO3 ceramics

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The epitaxial growth of the LaCaMnO thin films with the CMR effects prepared by a new method: Precursor film sintering

Cited by 11 publications

References 14 publications

Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Mixed‐Valence Perovskite Thin Films by Polymer‐Assisted Deposition

Magnetic and transport properties of chemical solution deposited (100)-textured La0.7Sr0.3MnO3and La0.7Ca0.3MnO3nanocrystalline thin films

Effect of dispersant sodium dodecylbenzene sulfonate content on electrical transport properties of La0.67Ca0.33MnO3 ceramics

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Magnetic and transport properties of chemical solution deposited (100)-textured La_0.7Sr_0.3MnO₃and La_0.7Ca_0.3MnO₃nanocrystalline thin films