Preparation of rare-earth manganite-oxide thin films by metalorganic aerosol deposition technique

Abstract

A chemical deposition technique based on the use of solutions of metal-chelate coordination compounds has been applied to prepare rare-earth–manganite-oxide thin films. La0.67Ca0.33MnO3 and La0.67Sr0.33MnO3 thin films have been grown epitaxially on MgO(100) substrates and characterized by structural (x-ray diffraction analysis, atomic force microscopy) and magnetotransport (T=4.2–300 K, and B=0–5 T) measurements.

Conditions for the growth of smooth La0.7Sr0.3MnO3 thin films by pulsed electron ablation

“…The lowest roughness achieved by an ablation technique was performed by PLD and found to be about 0.2 nm on about 10 nm thick films [24]. Similar results were featured by Metalorganic Aerosol Deposition (MAD) [25,26], but in that case the 0.2 nm roughness is claimed for thicker films of 80 nm. Best MBE roughness reached as low as 0.4 nm [27] and was found for 9 nm films.…”

Magnetotransport properties of La 1−x Ca x MnO 3 (0.52 ≤ x ≤ 0.75): Signature of phase coexistence

“…At this point, it is also important to mention that the optical properties study was performed comparing bulk material and films in overdoped region for x > 0.5, with the additional motivation to clarify the role of disorder in the physics of overdoped La 1−x Ca x MnO 3 manganites [23]. The films in this study were prepared in the same way as the films in our study [24]. The results confirmed that disorder effects are more pronounced in bulk material than in films as well as that disorder must be taken into account when analyzing low-energy properties.…”

Intrinsic Inhomogeneities in Manganite Thin Films Investigated with Scanning Tunneling Spectroscopy

“…Additionally, results from a 200 nm thick La 0.7 Ca 0.3 MnO 3 (LCMO) film which was deposited by a metalorganic aerosol deposition (MAD) method [20] are presented. MgO substrates were used in order to get epitaxial growth of the films [21].…”