Reversible electron‐beam writing on a submicron scale in a superionic amorphous film

1993 ◽  
Vol 63 (13) ◽  
pp. 1801-1803 ◽  
Author(s):  
J. M. Oldale ◽  
S. R. Elliott
2013 ◽  
Vol 11 (1) ◽  
pp. 12 ◽  
Author(s):  
M Moolman ◽  
Zhuangxiong Huang ◽  
Sriram Krishnan ◽  
Jacob WJ Kerssemakers ◽  
Nynke H Dekker

2011 ◽  
Vol 65 (8) ◽  
pp. 695-698 ◽  
Author(s):  
C.J. Lee ◽  
H.K. Lin ◽  
J.C. Huang ◽  
S.Y. Kuan

1996 ◽  
Vol 80 (11) ◽  
pp. 6170-6174 ◽  
Author(s):  
Long Ba ◽  
Yong Qin ◽  
Ziqin Wu

2011 ◽  
Vol 415-417 ◽  
pp. 1376-1381
Author(s):  
Jun Hu ◽  
Shao Xuan Gu

PLD(pulsed laser deposition) method was used to prepare amorphous GeS2-Ga2S3-CdS chalcogenide film. Obvious SHG(second harmonic generation) was observed in electron beam irradiated film by Maker fringe method. According to Raman spectra, we discussed the mechanism of SHG and ascribed the origination of SHG to the local electric field generation under electron beam and uneven charge distribution. With the increase of accelerating voltage and the extension of irradiation time, the SHG intensity increased and reached the maximum, which is due to the enhancement of breakage of glassy isotropy with gradually increased incident electron energy and the finite population of electric dipoles leading to the saturation of SH intensity.


2020 ◽  
Vol 193 ◽  
pp. 108826
Author(s):  
Evangelia Dislaki ◽  
Matteo Cialone ◽  
Federica Celegato ◽  
Paola Rizzi ◽  
Paola Tiberto ◽  
...  

Micromachines ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 349 ◽  
Author(s):  
Baofa Hu ◽  
Shaoda Zhang ◽  
Hong Zhang ◽  
Wenlong Lv ◽  
Chunquan Zhang ◽  
...  

High frequency surface acoustic wave (SAW) technology offers many opportunities for aerospace applications in passive wireless sensing and communication. This paper presents the design, simulation, fabrication, and test of an L-band SAW resonator based on 128° Y-X LiNbO3 substrate. The design parameters of SAW resonator were optimized by the finite element (FEM) method and the coupling-of-mode (COM) theory. Electron-beam lithography (EBL) technology was used to fabricate the submicron-scale of interdigital transducers (IDTs) and grating reflectors. The effects of some key EBL processes (e.g., the use of electron beam resist, the choice of metal deposition methods, the charge-accumulation effect, and the proximity-effect) on the fabrication precision of SAW devices were discussed. Experimentally, the LiNbO3-based SAW resonators fabricated using improved EBL technology exhibits a Rayleigh wave resonance peaks at 1.55 GHz with return loss about −12 dB, and quality factor Q is 517. Based on this SAW resonator, the temperature and strain sensing tests were performed, respectively. The experimental results exhibit a well linear dependence of temperature/strain on frequency-shift, with a temperature sensitivity of 125.4 kHz/°C and a strain sensitivity of −831 Hz/με, respectively.


Author(s):  
G. G. Shaw

The morphology and composition of the fiber-matrix interface can best be studied by transmission electron microscopy and electron diffraction. For some composites satisfactory samples can be prepared by electropolishing. For others such as aluminum alloy-boron composites ion erosion is necessary.When one wishes to examine a specimen with the electron beam perpendicular to the fiber, preparation is as follows: A 1/8 in. disk is cut from the sample with a cylindrical tool by spark machining. Thin slices, 5 mils thick, containing one row of fibers, are then, spark-machined from the disk. After spark machining, the slice is carefully polished with diamond paste until the row of fibers is exposed on each side, as shown in Figure 1.In the case where examination is desired with the electron beam parallel to the fiber, preparation is as follows: Experimental composites are usually 50 mils or less in thickness so an auxiliary holder is necessary during ion milling and for easy transfer to the electron microscope. This holder is pure aluminum sheet, 3 mils thick.


Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.


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