Annealing induced grain growth and grain connectivity in an epitaxial film of La0.67Ca0.33MnO3 and its effect on low field colossal magnetoresistance

Properties of (h00)-oriented La1−xNaxMnO3 films (x=0.1, 0.15 and 0.3) prepared by chemical solution deposition method

“…So far, the previous works have mainly focused on the manganites doped with divalent elements such as Sr, Ba, Ca and Pb [6][7][8][9], but there are only a few reports on the magnetic and transport properties of monovalent element-doped manganites.…”

Growth of oriented films of La0.67Ca0.33MnO3and La0.67Sr0.33MnO3on SrTiO3using chemical solution deposition

“…In addition, understanding the novel transport and magnetotransport properties of these materials is a substantial challenge. One of the fruitful endeavours in this field has been the growth of good quality films with appreciable magnetoresistance (MR) and high ferromagnetic transition temperature (T c ), preferably above 300 K. The magnetic and electrical properties of the films of these CMR oxides are very sensitive to the material processing parameters, such as the method of deposition, the temperature of growth [3], post-deposition annealing treatment [4], quality of epitaxy and mismatch with the substrate [5]. Strain and microstructure play important roles in the determination of the physical properties of films.…”

Electronic transport in nanostructured thin films of perovskite manganite La0.67Ca0.33MnO3: role of grain boundaries

“…At this thickness of 200 nm, the films on the STO substrate are strain relaxed and have a platelet structure in contrast to the terrace and step pattern seen in films with a lower thickness, which are uniformly strained [7]. We have previously reported the effect of annealing on such films [8].…”