Growth of Sr1−xNdxCuOy Thin Films by Rf-Magnetron Sputtering and Pulsed-Laser Deposition

1992 ◽  
Vol 275 ◽  
Author(s):  
Nobuyuki Sugii ◽  
Michiharu Ichikawa ◽  
Koichi Kubo ◽  
Takeshi Sakurai ◽  
Kiyoshi Yamamoto ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Pulsed Laser Deposition ◽  
Layer Structure ◽  
Pulsed Laser ◽  
Rf Magnetron Sputtering ◽  
Lattice Parameter ◽  
Laser Deposition ◽  
Infinite Layer ◽  
Sputter Deposited

ABSTRACTSr1−xNdxCuOy thin films are grown on SrTiO3 substrates by rf-magnetron sputtering and pulsed-laser deposition. The sputter-deposited film with x=0 has an “infinite-layer” structure whose lattice constants are: α=0.390 nm and c=0.347 nm. When x is larger than 0.1, the films contain a phase of the Sr14CuO24O41 structure. The laser-deposited films of Sr1−xNdxCuOy with x≤.075 were single phase of the “infinite-layer” structure. The lattice parameter c decreased and the lattice parameter αincreased, as the Nd content, x, increased. The films with α=0.10 and 0.125 exhibited superconducting onset temperatures around 26 K. Weak Meissner signals were observed for these films at temperatures below 30 K.

scholarly journals Formation of artificially-Layered Thin-Film Compounds Using Pulsed-Laser Deposition

1995 ◽  
Vol 388 ◽  
Author(s):  
David P. Norton ◽  
B. C. Chakoumakos ◽  
D. H. Lowndes ◽  
J. D. Budai
Keyword(s):  
Thin Film ◽  
Pulsed Laser Deposition ◽  
Layer Structure ◽  
Finite Thickness ◽  
Pulsed Laser ◽  
Unit Cell ◽  
Laser Deposition ◽  
Thickness Variation ◽  
Infinite Layer ◽  
Layered Thin Film

AbstractSuperlattice structures, consisting of SrCuO2, (Sr,Ca)CuO2, and BaCuO2 layers in the tetragonal, "infinite layer" crystal structure, have been grown by pulsed-laser deposition (PLD). Superlattice chemical modulation is observed for structures with component layers as thin as a single unit cell (~3.4 Å), indicating that unit-cell control of (Sr,Ca)CuO2 growth is possible using conventional pulsed-laser deposition over a wide oxygen pressure regime. X-ray diffraction intensity oscillations, due to the finite thickness of the film, indicate that these films are extremely flat with a thickness variation of only ~20 Å over a length scale of several thousand angstroms. Using the constraint of epitaxy to grow metastable cuprates in the infinite layer structure, novel high-temperature superconducting structural families have been formed. IN particular, epitaxially-stabilized SrCuO2/BaCuO2 superlattices, grown by sequentially depositing on lattice-matched (100) SrTiO3 from BaCuO2 and SrCuO2 ablation targets in a PLD system, show metallic conductivity and superconductivity at Tc(onset) ~70 K. these results show that pulsed-laser deposition and epitaxial stabilization have been used to effectively "engineer" artificially-layered thin-film materials.

scholarly journals Combined magnetron sputtering and pulsed laser deposition of TiO 2 and BFCO thin films

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
D. Benetti ◽  
R. Nouar ◽  
R. Nechache ◽  
H. Pepin ◽  
A. Sarkissian ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition

In-Situ Magnetic Field Induced Structure and Properties of Epitaxial Spinel Ferrite Thin Films Prepared by Pulsed Laser Deposition (PLD) (Dynamic Aurora PLD Method)

2004 ◽  
Vol 853 ◽  
Author(s):  
Naoki Wakiya ◽  
Toyokazu Nagamune ◽  
Kazuo Shinozaki ◽  
Nobuyasu Mizutani
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Magnetic Properties ◽  
Pulsed Laser Deposition ◽  
Deposition Rate ◽  
Spinel Ferrite ◽  
Pulsed Laser ◽  
Lattice Parameter ◽  
Laser Deposition

ABSTRACTThe influence of an in-situ magnetic field on the plume during pulsed laser deposition (PLD) to prepare epitaxial nickel zinc ferrite (NZF) thin films were investigated. An air core coil (solenoid coil) was installed between a target and a substrate, and up to 43 mT of magnetic field was generated by direct current (DC)(Dynamic Aurora PLD method). Application of magnetic field brought about following structural and property changes;(1) deposition rate was almost doubled, (2) the concentration of Ni and Zn in the film was decreased, (3) lattice parameter was unchanged, and (4) magnetization and coercivity was increased. Since deposition rate was increased by application of magnetic field, films with same thickness was also prepared without magnetic field, however, magnetic properties were unchanged. This indicates that application of in-situ magnetic field improved magnetic properties.

Conformity of Aluminum Thin Films Deposited onto Micro-Patterned Silicon Wafers by Pulsed Laser Deposition, Magnetron Sputtering, and CVD

2011 ◽  
Vol 17 (10-12) ◽  
pp. 366-374 ◽  
Author(s):  
Anne-Lise Thomann ◽  
Constantin Vahlas ◽  
Lyacine Aloui ◽  
Diane Samelor ◽  
Amael Caillard ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Silicon Wafers ◽  
Laser Deposition

Pulsed-Laser Deposition and Characterization of Sr1−xNdxCuOy of “Infinite-Layer” Structure

1993 ◽  
pp. 207-210
Author(s):  
Nobuyuki Sugii ◽  
Koichi Kubo ◽  
Kiyoshi Yamamoto ◽  
Michiharu Ichikawa ◽  
H. Yamauchi
Keyword(s):  
Pulsed Laser Deposition ◽  
Layer Structure ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Infinite Layer

scholarly journals Epitaxial Bi9Ti3Fe5O27 thin films: a new type of layer-structure room-temperature multiferroic

2017 ◽  
Vol 5 (31) ◽  
pp. 7720-7725 ◽  
Author(s):  
Xun Cao ◽  
Zhiqi Liu ◽  
Liv R. Dedon ◽  
Andrew J. Bell ◽  
Faye Esat ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Layer Structure ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Oxide Thin Films ◽  
High Quality ◽  
New Type

In this communication, we report the successful growth of high-quality Aurivillius oxide thin films with m = 8 (where m denotes the number of pseudo-perovskite blocks) using pulsed laser deposition.

Structure and Magnetotransport Properties of La2/3Ca1/3MnO3 Thin Films Prepared by Pulsed Laser Deposition

1998 ◽  
Vol 526 ◽  
Author(s):  
O.I. Lebedev ◽  
G. van Tendeloo ◽  
S. Amelinckx ◽  
B. Leibold ◽  
H.-U. Habermeier ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Displacement Vector ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Atomic Emission ◽  
Growth Conditions ◽  
Lattice Parameter ◽  
Laser Deposition ◽  
Parameter Mismatch

AbstractLa1-xCaxMnO3-δ (LCMO) thin films are grown by pulsed laser deposition on a (100) SrTiO3 substrate at temperatures between 530°C and 890°C. The magnetotransport properties show a high negative magnetoresistance and a shift of the maximum of the R(T) curve as function of temperature. The Curie temperature changes with deposition temperature and film quality in the range of 100-220K. The film quality is characterised by X-ray diffraction and transmission electron microscopy (TEM); film and target compositions were verified by atomic emission spectroscopy. The local structure of the film depends on the growth conditions and substrate temperature. TEM reveals a slight distortion of the film leading to a breakdown of the symmetry from orthorhombic to monoclinic. At the highest growth temperatures, a well defined interface is observed within the LCMO film, parallel to the substrate surface; this interface divides the film into two lamellae with a different microstructure. The lamella close to the substrate is perfectly coherent with the substrate, suggesting that it is strained as a result of the lattice parameter mismatch; the upper lamella shows a typical domain structure with unusual translation interfaces characterised by a displacement vector of the type 1/2 [010]m and 1/2[001]m when referred to the monoclinic lattice.

scholarly journals Synthesis and Characterization of Cu2ZnSnS4 Thin Films Obtained by Combined Magnetron Sputtering and Pulsed Laser Deposition

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2403
Author(s):  
Mohamed-Yassine Zaki ◽  
Florinel Sava ◽  
Angel-Theodor Buruiana ◽  
Iosif-Daniel Simandan ◽  
Nicu Becherescu ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Pulsed Laser Deposition ◽  
Single Phase ◽  
Stoichiometric Composition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Synthesis And Characterization ◽  
X Ray

Cu2ZnSnS4 (CZTS) is a complex quaternary material, and obtaining a single-phase CZTS with no secondary phases is known to be challenging and dependent on the production technique. This work involves the synthesis and characterization of CZTS absorber layers for solar cells. Thin films were deposited on Si and glass substrates by a combined magnetron sputtering (MS) and pulsed laser deposition (PLD) hybrid system, followed by annealing without and with sulfur powder at 500 °C under argon (Ar) flow. Three different Cu2S, SnS2, and ZnS targets were used each time, employing a different target for PLD and the two others for MS. The effect of the different target arrangements and the role of annealing and/or sulfurization treatment were investigated. The characterization of the absorber films was performed by grazing incidence X-ray diffraction (GIXRD), X-ray reflectometry (XRR), Raman spectroscopy, scanning electron microscopy, and regular transmission spectroscopy. The film with ZnS deposited by PLD and SnS2 and Cu2S by MS was found to be the best for obtaining a single CZTS phase, with uniform surface morphology, a nearly stoichiometric composition, and an optimal band gap of 1.40 eV. These results show that a new method that combines the advantages of both MS and PLD techniques was successfully used to obtain single-phase Cu2ZnSnS4 films for solar cell applications.

Raman Spectra of Srm-3Bi4TimO3m+3 Thin Films

2003 ◽  
Vol 784 ◽  
Author(s):  
Jia Wang ◽  
Guangxu Cheng ◽  
Shantao Zhang ◽  
Hongwei Cheng ◽  
Yanfeng Chen
Keyword(s):  
Thin Films ◽  
Single Crystal ◽  
Pulsed Laser Deposition ◽  
Raman Spectra ◽  
Layer Structure ◽  
Pulsed Laser ◽  
Local Scale ◽  
Laser Deposition ◽  
Single Crystal Substrate ◽  
Crystal Substrate

ABSTRACTA series of bismuth layer-structured ferroelectrics thin films Srm-3Bi4TimO3m+3(m=3, 4, 5, and 6) were deposited by pulsed laser deposition (PLD) on (001) LaAlO3 single crystal substrate. XRD and Raman studies have been performed. The more sensitive Raman spectra lead to a different understanding on the layer structure of Sr3Bi4Ti6O21 from XRD. This can be attributed to the lager c-axis constant of Sr3Bi4Ti6O21 due to more layers. More layers lead to increasing disorder in the local scale of the average grain.

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