Preparation and optical properties of single-crystalline CaCuO2 thin films with infinite layer structure

2004 ◽  
Vol 412-414 ◽  
pp. 298-302 ◽  
Author(s):  
D. Kan ◽  
A. Yamanaka ◽  
T. Terashima ◽  
M. Takano
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Layer Structure ◽  
Single Crystalline ◽  
Infinite Layer

Single-Crystal Thin Films of SrFeO2 and LaNiO2 with Infinite-Layer Structures

2008 ◽  
Vol 1148 ◽  
Author(s):  
Yuichi Shimakawa ◽  
Satoru Inoue ◽  
Masanori Kawai ◽  
Noriya Ichikawa ◽  
Masaichiro Mizumaki ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystal ◽  
Layer Structure ◽  
Reduction Process ◽  
Transition Metal Ions ◽  
Epitaxial Thin Films ◽  
Infinite Layer ◽  
Oxygen Ions ◽  
Structure Framework ◽  
Layer Structures

AbstractInfinite-layer-structure epitaxial thin films of SrFeO2 and LaNiO2 respectively were prepared by low-temperature reduction with CaH2 from brownmillerite SrFeO2.5 and perovskite LaNiO3 epitaxial thin films grown on single-crystal substrates. The reduction process, removing oxygen ions from the perovskite-structure framework and causing rearrangements of oxygen ions, topotactically transforms the initial compounds to the c-axis oriented infinite-layer-structure epitaxial thin films. Consequently, the oxidation state of transition-metal ions in the film changed in wide ranges.

Temperature-Dependent Optical Properties of Single Crystalline and Polycrystalline Silver Thin Films

ACS Photonics ◽  
2017 ◽  
Vol 4 (5) ◽  
pp. 1083-1091 ◽  
Author(s):  
Harsha Reddy ◽  
Urcan Guler ◽  
Krishnakali Chaudhuri ◽  
Aveek Dutta ◽  
Alexander V. Kildishev ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Temperature Dependent ◽  
Single Crystalline ◽  
Silver Thin Films ◽  
Polycrystalline Silver

scholarly journals Fabrication of pseudo single crystalline thin films composed of polydiacetylene nanofibers and their optical properties

2017 ◽  
Vol 7 (7) ◽  
pp. 2218 ◽  
Author(s):  
Yuki Iimori ◽  
Tsunenobu Onodera ◽  
Hitoshi Kasai ◽  
Masaya Mitsuishi ◽  
Tokuji Miyashita ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Single Crystalline

Superconducting (Sr, Nd) CuOy thin films with infinite-layer structure

1992 ◽  
Vol 196 (1-2) ◽  
pp. 14-16 ◽  
Author(s):  
H. Adachi ◽  
T. Satoh ◽  
Y. Ichikawa ◽  
K. Setsune ◽  
K. Wasa
Keyword(s):  
Thin Films ◽  
Layer Structure ◽  
Infinite Layer

Optical properties of ZnO thin films obtained by heat treatment of Zn thin films on amorphous SiO2 substrates and single crystalline GaSe lamellas

2016 ◽  
Vol 617 ◽  
pp. 103-107 ◽  
Author(s):  
Iuliana Caraman ◽  
Liliana Dmitroglo ◽  
Igor Evtodiev ◽  
Liviu Leontie ◽  
Dumitru Untila ◽  
...  
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Optical Properties ◽  
Zno Thin Films ◽  
Amorphous Sio2 ◽  
Single Crystalline

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 Morphological characterization and porosity profiles of tantalum glancing-angle-deposited thin films

2020 ◽  
Vol 9 (1) ◽  
pp. 79-87
Author(s):  
Tobias Ott ◽  
Gerald Gerlach
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Optical Properties ◽  
Physical Vapor Deposition ◽  
Effective Medium Theory ◽  
Layer Structure ◽  
Ion Beam ◽  
Periodic Pattern ◽  
Sem Images ◽  
Glancing Angle

Abstract. Glancing angle deposition (GLAD) is a physical vapor deposition (PVD) process using a substrate that rotates tilted at an angle to the evaporation source. Depending on the deposition conditions, it provides the controlled formation of regular nanostructures during the PVD process. As a result, a wide variety of shapes, such as spirals or vertical columns, can be easily fabricated in the nanometer range. For this reason, GLAD has already been proven reliable in the production of optical coatings with very low reflectance in a broad spectral range. This paper examines the morphology of tantalum nanostructures deposited on planar silicon substrates by electron beam evaporation. The prepared samples are characterized by scanning electron microscope (SEM) images at a breaking edge with respect to the layer structure and by focused ion beam (FIB) SEM images of the cross-sectional areas with respect to the porosity. The porosity can be used to model the optical properties of the thin film with the effective medium theory (EMT). Our work studies the relationship between the evaporation parameters (growth pitch and deposition angle) and thin film morphology of tantalum so that in future work the optical properties can be linked to the deposition parameters, which in turn can be chosen to achieve highly absorbent infrared radiation layers, e.g., for infrared sensors. It was shown that the porosity across the film thickness of both columnar and screw-like thin films is nearly constant, whereas the porosity profiles of spiral structures show a periodic pattern, the period of which seems to depend on the growth pitch.

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