scholarly journals Fibroblast Response to Nanocolumnar TiO 2 Structures Grown by Oblique Angle Sputter Deposition

2021 ◽  
pp. 2100646
Author(s):  
Uta Kapprell ◽  
Sabrina Friebe ◽  
Susann Grüner ◽  
Christoph Grüner ◽  
Astrid Kupferer ◽  
...  
2003 ◽  
Vol 83 (15) ◽  
pp. 3096-3098 ◽  
Author(s):  
Tansel Karabacak ◽  
Anupama Mallikarjunan ◽  
Jitendra P. Singh ◽  
Dexian Ye ◽  
Gwo-Ching Wang ◽  
...  

2018 ◽  
Vol 5 (4) ◽  
pp. 045018
Author(s):  
Pengjun Shi ◽  
Xibo Li ◽  
Qiuju Zhang ◽  
Zao Yi ◽  
Jiangshan Luo

2015 ◽  
Vol 117 (2) ◽  
pp. 024303 ◽  
Author(s):  
S. Swain ◽  
I. Thakur ◽  
S. Chatterjee ◽  
N. A. Kulkarni ◽  
P. Ayyub ◽  
...  

2003 ◽  
Vol 788 ◽  
Author(s):  
Tansel Karabacak ◽  
Pei-I Wang ◽  
Gwo-Ching Wang ◽  
Toh-Ming Lu

ABSTRACTWe report the creation of single crystal tungsten nanorods with unusual simple cubic β-phase. These novel nano-structures were grown by oblique angle sputter deposition with substrate rotation through a shadowing effect. Transmission electron microscopy (TEM) diffraction patterns from individual nanorods clearly show the single crystal structure. It is evident from TEM diffraction measurements, during the oblique angle deposition, both β-phase W(100) and α-phase W(110) islands exist at the initial stages of growth. However, at later stages of the growth the β-phase structure dominates. This is in contrast to the sputter deposition at normal incidence where only the thermodynamically stable bcc α-phase W(110) polycrystalline films were formed when the film grew to a certain thickness. We explain our results by using the shadowing and adatom mobility mechanisms: At the initial stages of growth, the β-phase W(100) islands grow taller due to the lower adatom mobility on these islands. The taller β-phase W(100) islands survive in the competition during oblique angle growth and form isolated nanorods in the later stages, while the shorter α-phase W(110) islands stop growing due to the shadowing effect. In addition, our Monte Carlo simulation results agree well with the experimental measurements.


2019 ◽  
Vol 30 (38) ◽  
pp. 385301 ◽  
Author(s):  
Divya Gupta ◽  
Rimpi Kumari ◽  
G R Umapathy ◽  
Rahul Singhal ◽  
Sunil Ojha ◽  
...  

2006 ◽  
Vol 24 (2) ◽  
pp. 235-245 ◽  
Author(s):  
P. Morrow ◽  
F. Tang ◽  
T. Karabacak ◽  
P.-I. Wang ◽  
D.-X Ye ◽  
...  

2018 ◽  
Vol 160 ◽  
pp. 338-349 ◽  
Author(s):  
Boudjemaa Bouaouina ◽  
Cédric Mastail ◽  
Aurélien Besnard ◽  
Rubenson Mareus ◽  
Florin Nita ◽  
...  

Author(s):  
M. G. Lagally

It has been recognized since the earliest days of crystal growth that kinetic processes of all Kinds control the nature of the growth. As the technology of crystal growth has become ever more refined, with the advent of such atomistic processes as molecular beam epitaxy, chemical vapor deposition, sputter deposition, and plasma enhanced techniques for the creation of “crystals” as little as one or a few atomic layers thick, multilayer structures, and novel materials combinations, the need to understand the mechanisms controlling the growth process is becoming more critical. Unfortunately, available techniques have not lent themselves well to obtaining a truly microscopic picture of such processes. Because of its atomic resolution on the one hand, and the achievable wide field of view on the other (of the order of micrometers) scanning tunneling microscopy (STM) gives us this opportunity. In this talk, we briefly review the types of growth kinetics measurements that can be made using STM. The use of STM for studies of kinetics is one of the more recent applications of what is itself still a very young field.


Author(s):  
M. A. Kirk ◽  
M. C. Baker ◽  
B. J. Kestel ◽  
H. W. Weber

It is well known that a number of compound superconductors with the A15 structure undergo a martensite transformation when cooled to the superconducting state. Nb3Sn is one of those compounds that transforms, at least partially, from a cubic to tetragonal structure near 43 K. To our knowledge this transformation in Nb3Sn has not been studied by TEM. In fact, the only low temperature TEM study of an A15 material, V3Si, was performed by Goringe and Valdre over 20 years ago. They found the martensite structure in some foil areas at temperatures between 11 and 29 K, accompanied by faults that consisted of coherent twin boundaries on {110} planes. In pursuing our studies of irradiation defects in superconductors, we are the first to observe by TEM a similar martensite structure in Nb3Sn.Samples of Nb3Sn suitable for TEM studies have been produced by both a liquid solute diffusion reaction and by sputter deposition of thin films.


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