scholarly journals Multiple oxide content media for columnar grain growth in L10 FePt thin films

2013 ◽  
Vol 102 (11) ◽  
pp. 112411 ◽  
Author(s):  
Hoan Ho ◽  
En Yang ◽  
David E. Laughlin ◽  
Jian-Gang Zhu
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Oxide Content ◽  
Columnar Grain ◽  
Fept Thin Films

scholarly journals Columnar grain growth of FePt(L10) thin films

2012 ◽  
Vol 111 (7) ◽  
pp. 07B720 ◽  
Author(s):  
En Yang ◽  
Hoan Ho ◽  
David E. Laughlin ◽  
Jian-Gang Zhu
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Columnar Grain

Stress and Microstructure in Rf-Diode and Dc-Magnetron Sputtered Beryllium Thin Films

1991 ◽  
Vol 239 ◽  
Author(s):  
Risto H. Mutikainen
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Deposition Parameters ◽  
Film Microstructure ◽  
Columnar Grain ◽  
Free Films

ABSTRACTThe effect of deposition parameters on the properties of sputtered Be films has been studied. The parameters have been optimized to obtain stress free films. Nitrogen pulsing has been used to improve the film microstructure by suppressing the columnar grain growth.

Single-crystal and Nano-columnar Growth of Gadolinium-doped Ceria Thin Films on Oxide Substrates Studied Using Electron Microscopy

2003 ◽  
Vol 795 ◽  
Author(s):  
D. X. Huang ◽  
C. L. Chen ◽  
A. J. Jacobson
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Single Crystal ◽  
Grain Growth ◽  
Lattice Mismatch ◽  
Compressive Strain ◽  
Doped Ceria ◽  
Columnar Grain ◽  
Film Substrate ◽  
Gadolinium Doped Ceria

ABSTRACTGadolinium-doped ceria (GDC) thin films were grown by pulsed laser ablation on various oxide single crystal substrates including MgO, YSZ, LAO, NGO, and STO with different film-substrate lattice mismatch ratios. The film microstructures were characterized mainly by using electron microscopy. A clear influence of the filmsubstrate lattice mismatch on the film crystallinity has been observed. The GDC films usually exhibit columnar grain growth for a large range of film-substrate lattice mismatch ratios. A cube-on-cube growth of GDC film on MgO has been observed with a surprisingly high lattice mismatch ratio of 28%. The highest film crystallinity is obtained on the LAO substrates under a small compressive strain. This single-crystalline GDC film shows no columnar grain growth but presents a novel directionally-aligned precipitated Gd-rich nanoparticle system, which plays a specific role in relaxing various kinds of strain fields induced during the thin film growth to ensure the film crystallinity.

Ordering and grain growth of FePt thin films by annealing

2008 ◽  
Vol 320 (22) ◽  
pp. 3057-3059 ◽  
Author(s):  
Norio Murayama ◽  
Susumu Soeya ◽  
Yoshio Takahashi ◽  
Masaaki Futamoto
Keyword(s):  
Thin Films ◽  
Grain Growth ◽  
Fept Thin Films

L10 Ordering of FePt Thin Films by Rapid Thermal Annealing

2003 ◽  
Vol 27 (11) ◽  
pp. 1083-1086 ◽  
Author(s):  
H. Ito ◽  
T. Kusunoki ◽  
H. Saito ◽  
S. Ishio
Keyword(s):  
Thin Films ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Fept Thin Films

Ionic Conductivities of Doped CeO2 Thin Films as Related to Their Microstructure

1995 ◽  
Vol 411 ◽  
Author(s):  
Chunyan Tian ◽  
Siu-Wai Chan
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Ionic Conductivities ◽  
Dielectric Constants ◽  
Grain Structure ◽  
X Ray Diffraction ◽  
Fine Grain ◽  
Brick Layer Model ◽  
Columnar Grain ◽  
Beam Deposition

ABSTRACTThin films of 4% Y2O3 doped CeO2/Pd film/(001)LaA103 with a very low pinhole density were successfully prepared using electron-beam deposition technique. The microstructure of the films was characterized by x-ray diffraction and the electrical properties were studied as a function of temperature with AC impedance spectroscopy. A brick layer model was adopted to correlate the electrical properties to the microstructure of the films, which can be simplified as either a series or a parallel equivalent circuit associated with either a fine grain or a columnar grain structure, respectively. The conductivities of the films fell between the conductivities derived from the two circuit models, suggesting that the films are of a mixed fine grain and columnar grain structure. The measured dielectric constants of the films were found smaller than that of the bulk.

scholarly journals Color Tuning by Oxide Addition in PEDOT:PSS-Based Electrochromic Devices

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 179 ◽  
Author(s):  
Delphin Levasseur ◽  
Issam Mjejri ◽  
Thomas Rolland ◽  
Aline Rougier
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Conducting Polymers ◽  
Applied Voltage ◽  
Oxide Content ◽  
Electrochromic Devices ◽  
Careful Evaluation ◽  
Pedot Film ◽  
Oxide Addition ◽  
Dark Blue

Poly(3,4-ethylenedi-oxythiophene) (PEDOT) derivatives conducting polymers are known for their great electrochromic (EC) properties offering a reversible blue switch under an applied voltage. Characterizations of symmetrical EC devices, built on combinations of PEDOT thin films, deposited with a bar coater from commercial inks, and separated by a lithium-based ionic membrane, show highest performance for 800 nm thickness. Tuning of the color is further achieved by mixing the PEDOT film with oxides. Taking, in particular, the example of optically inactive iron oxide Fe2O3, a dark blue to reddish switch, of which intensity depends on the oxide content, is reported. Careful evaluation of the chromaticity parameters L*, a*, and b*, with oxidizing/reducing potentials, evidences a possible monitoring of the bluish tint.

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