The domain formation in Fe/Ni/Fe nanoscale magnetic antidot arrays

2012 ◽  
Vol 111 (6) ◽  
pp. 063902 ◽  
Author(s):  
Ruihua Cheng ◽  
A. Rosenberg ◽  
D. N. McIlroy ◽  
Z. Holman ◽  
D. Zhang ◽  
...  
Keyword(s):  
Domain Formation ◽  
Antidot Arrays

Domain Formation in Synthetic Quartz

1971 ◽  
Vol 29 ◽  
pp. 156-157
Author(s):  
Joseph J. Comer
Keyword(s):  
Electron Beam ◽  
Room Temperature ◽  
Domain Formation ◽  
Synthetic Quartz ◽  
Transmission Electron ◽  
Black Spots ◽  
Diffraction Mode ◽  
Domain Boundaries ◽  
Kikuchi Lines ◽  
Straight Lines

Domains visible by transmission electron microscopy, believed to be Dauphiné inversion twins, were found in some specimens of synthetic quartz heated to 680°C and cooled to room temperature. With the electron beam close to parallel to the [0001] direction the domain boundaries appeared as straight lines normal to <100> and <410> or <510> directions. In the selected area diffraction mode, a shift of the Kikuchi lines was observed when the electron beam was made to traverse the specimen across a boundary. This shift indicates a change in orientation which accounts for the visibility of the domain by diffraction contrast when the specimen is tilted. Upon exposure to a 100 KV electron beam with a flux of 5x 1018 electrons/cm2sec the boundaries are rapidly decorated by radiation damage centers appearing as black spots. Similar crystallographio boundaries were sometimes found in unannealed (0001) quartz damaged by electrons.

scholarly journals Mechanical origin of martensite-like structures in two-dimensional ReS2

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Lingli Huang ◽  
Fangyuan Zheng ◽  
Honglin Chen ◽  
Quoc Huy Thi ◽  
Xin Chen ◽  
...  
Keyword(s):  
Chemical Vapor ◽  
Two Dimensional ◽  
Domain Formation ◽  
Domain Structures ◽  
And Topology ◽  
Two Dimensional Materials ◽  
Small Lattice ◽  
Properties Of Materials ◽  
Potential Use ◽  
Diffusionless Transformation

AbstractMartensite is a needle-shaped microstructure formed by a rapid, diffusionless transformation and significantly affects the mechanical properties of materials. Here, in two-dimensional ReS2 we show that martensite-like domain structures can form via a diffusionless transformation, involving small lattice deformations. By analyzing the strain distribution and topology of the as-grown chemical vapor deposition samples, we find that cooling-induced strain at the ReS2/substrate interface is responsible for the mechanical loading and is essential for martensite-like domain formation. Meanwhile, the effect of cooling rate, flake size and substrate on the microstructures revealed the mechanical origin of the transformation. The strain-induced lattice reconstructions are rationalized and possibly lead to ferroelastic effects. In view of the strong anisotropy in electronic and optical properties in two dimensional materials like ReS2, opportunities exist for strain-correlated micro/nanostructure engineering, which has potential use in next-generation strain-tunable devices.

Current distribution in antidot arrays close to the quantum Hall regime

1999 ◽  
Vol 60 (4) ◽  
pp. 2561-2570 ◽  
Author(s):  
Rolf R. Gerhardts ◽  
Johannes Groß
Keyword(s):  
Current Distribution ◽  
Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime ◽  
Antidot Arrays

Optical Study on Domain Formation in NH4BeF3

1984 ◽  
Vol 53 (8) ◽  
pp. 2606-2612 ◽  
Author(s):  
Hideyo Yoshida ◽  
Takeyo Tsukamoto ◽  
Hideo Futama ◽  
Yasuharu Makita
Keyword(s):  
Domain Formation ◽  
Optical Study
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