Soft and Morphable Displays and Profilometers: Self-Assembled Out-of-Plane by Capillary Pressure Acting on a Gel

2016 ◽  
Vol 63 (5) ◽  
pp. 2023-2028 ◽  
Author(s):  
Ganapathy Saravanavel ◽  
Karthik Raghunandan ◽  
Sanjiv Sambandan
2020 ◽  
Vol 8 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Lei Wang ◽  
Jihong Bian ◽  
Lu Lu ◽  
Zhongshuai Liang ◽  
Dawei Zhang ◽  
...  

The piezoelectric amplitude drops by 44.7% and meanwhile the out-of-plane tensile strain rises by 11.0% under reverse magnetic fields in (1–3)-type BFO–CFO thin films.


2008 ◽  
Vol 17 (04) ◽  
pp. 451-463 ◽  
Author(s):  
XIN WANG ◽  
JIASHENG RU ◽  
SHIZUYASU OCHIAI ◽  
YUU YAMADA ◽  
YOSHIYUKI UCHIDA ◽  
...  

Regioregular poly(3-hexylthiophene) [RR-P3HT] thin films were prepared on fused quartz glasses by spin-coating and drop-casting from the chloroform solutions. Film structures and morphologies were characterized by UV-visible absorption spectra, out-of-plane X-ray diffraction (XRD) and atomic force microscopy (AFM). Drop-cast films showed increased χ(3) of about three times higher than that of the spin-coated ones when the film thicknesses were both around 140 nm, and the magnitude of the increase was different for different thickness. The magnitudes of χ(3) for drop-cast RR-P3HT films were calculated in the range of 10-11 esu, and the phases of χ(3) lay in the range from 230 to 300° which were consistent with the contributions from two-photon absorptions (TPA). Hexamethyldisilazane (HMDS) treatment of the glass substrates could increase the χ(3) of drop-cast films further from about ten percent to several times higher. This also depended on the film thickness. These results revealed the deposition method and surface modification effects on the self-assembled RR-P3HT film structures, and the importance of higher-ordering and increased crystallinity for the enhancement of the χ(3) of the polymeric films for their applications in NLO devices.


Coatings ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 314
Author(s):  
Ie-Hong Hong ◽  
Sheng-Wen Liu

The quasi-periodic magnetic domains in metallic Fe-silicide nanowires self-assembled on the Si(110)-16 × 2 surface have been observed at room temperature by direct imaging of both the topographic and magnetic structures using spin-polarized scanning tunneling microscopy/spectroscopy. The spin-polarized differential conductance (dI/dV) map of the rectangular-sectional Fe-silicide nanowire with a width and height larger than 36 and 4 nm, respectively, clearly shows an array of almost parallel streak domains that alternate an enhanced (reduced) density of states over in-plane (out-of-plane) magnetized domains with a magnetic period of 5.0 ± 1.0 nm. This heterostructure of magnetic Fe-silicide nanowires epitaxially integrated with the Si(110)-16 × 2 surface will have a significant impact on the development of Si-based spintronic nanodevices.


2007 ◽  
Vol 1026 ◽  
Author(s):  
Takeshi Kasama ◽  
Rafal E. Dunin-Borkowski ◽  
Michael R. Scheinfein ◽  
Steven L. Tripp ◽  
Jie Liu ◽  
...  

AbstractWe use off-axis electron holography in the transmission electron microscope (TEM) to study magnetic flux closure (FC) states in self-assembled nanoparticle rings that each contain between five and eleven 25-nm-diameter Co crystals. Electron holograms are acquired at room temperature in zero-field conditions after applying chosen magnetic fields to the samples in situ in the TEM by partially exciting the conventional microscope objective lens. Mean inner potential contributions to the phase shift are determined by turning the samples over, and subsequently subtracted from each recorded phase image to obtain magnetic induction maps. Our results show that most nanoparticle rings form FC remanent magnetic states, and occasionally onion-like states. Although the chiralities (the directions of magnetization) of the FC states are determined by the shapes, sizes and positions of the constituent nanoparticles, reproducible magnetization reversal of each ring can be achieved by using an out-of-plane magnetic field of between 1600 and 2500 Oe.


2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Guo Yu ◽  
Feiming Bai ◽  
Huaiwu Zhang

Self-assembled nanocomposite BaTiO3-Mn0.4Zn0.87Fe2O4magnetodielectric films have been grown on (001)-oriented SrTiO3substrates by a pulsed laser deposition method. High resolution X-ray diffraction shows that both BaTiO3and MnZn-ferrite phases are epitaxial along the out-of-plane direction with a 0–3 composite structure in spite of very large lattice mismatch. The magnetic, ferroelectric, and dielectric properties of the nanocomposite films are reported. A saturated magnetization of 330 emu/cc and double remanent polarization of 40 μC/cm2were obtained. Structural and compositional factors limiting the effective permeability and the dielectric constant will be discussed.


Author(s):  
Björn Willenbacher ◽  
David May ◽  
Peter Mitschang

ACS Photonics ◽  
2020 ◽  
Vol 7 (10) ◽  
pp. 2825-2833
Author(s):  
Jiawen Liu ◽  
Lilian Guillemeney ◽  
Arnaud Choux ◽  
Agnès Maître ◽  
Benjamin Abécassis ◽  
...  

2011 ◽  
Vol 6 (12) ◽  
pp. 1016 ◽  
Author(s):  
M.S. Mohamed Ali ◽  
B. Bycraft ◽  
C. Schlosser ◽  
B. Assadsangabi ◽  
K. Takahata

Author(s):  
C.L. Chua ◽  
D.K. Fork ◽  
K. Van Schuylenbergh ◽  
J.-P. Lu
Keyword(s):  
High Q ◽  

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