Real-time observation of vortex lattices in a superconductor by electron microscopy

Nature ◽  
1992 ◽  
Vol 360 (6399) ◽  
pp. 51-53 ◽  
Author(s):  
K. Harada ◽  
T. Matsuda ◽  
J. Bonevich ◽  
M. Igarashi ◽  
S. Kondo ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Real Time ◽  
Vortex Lattices ◽  
Time Observation ◽  
Real Time Observation

Real-time observation of vortex lattices in a superconductor

1993 ◽  
Vol 51 ◽  
pp. 1050-1051
Author(s):  
K. Harada ◽  
T. Matsuda ◽  
J.E. Bonevich ◽  
M. Igarashi ◽  
S. Kondo ◽  
...  
Keyword(s):  
Real Time ◽  
Flux Line ◽  
Electron Holography ◽  
Lorentz Microscopy ◽  
Vortex Lattices ◽  
Flux Lines ◽  
Magnetic Flux Lines ◽  
Time Observation ◽  
Thin Superconductor ◽  
Real Time Observation

Previous observations of magnetic flux-lines (vortex lattices) in superconductors, such as the field distribution of a flux-line, and flux-line dynamics activated by heat and current, have employed the high spatial resolution and magnetic sensitivity of electron holography. And recently, the 2-D static distribution of vortices was also observed by this technique. However, real-time observations of the vortex lattice, in spite of scientific and technological interest, have not been possible due to experimental difficulties. Here, we report the real-time observation of vortex lattices in a thin superconductor, by means of Lorentz microscopy using a 300 kV field emission electron microscope. This technique allows us to observe the dynamic motion of individual vortices and record the events on a VTR system.The experimental arrangement is shown in Fig. 1. A Nb thin film for transmission observation was prepared by chemical etching. The grain size of the film was increased by annealing, and single crystals were observed with a thickness of 50∼90 nm.

scholarly journals Real-Time Observation of Ferritin Biomineralization Using Graphene Liquid Cells Electron Microscopy

2019 ◽  
Vol 25 (S2) ◽  
pp. 1122-1123
Author(s):  
Surya Narayanan ◽  
Reza Shahbazian-Yassar ◽  
Tolou Shokuhfar
Keyword(s):  
Electron Microscopy ◽  
Real Time ◽  
Time Observation ◽  
Real Time Observation

Real-time observation of graphene oxidation on Pt(111) by low-energy electron microscopy

2016 ◽  
Vol 644 ◽  
pp. 165-169 ◽  
Author(s):  
Viktor Johánek ◽  
Gregory W. Cushing ◽  
Jason K. Navin ◽  
Ian Harrison
Keyword(s):  
Electron Microscopy ◽  
Real Time ◽  
Low Energy ◽  
Energy Electron ◽  
Low Energy Electron ◽  
Time Observation ◽  
Graphene Oxidation ◽  
Real Time Observation

scholarly journals Real-Time Observation of Damage Nucleation in 3D Braided Carbon/Carbon Composites

2009 ◽  
Vol 18 (4) ◽  
pp. 096369350901800 ◽  
Author(s):  
Jin Kan ◽  
Liming Wei ◽  
Songhe Meng ◽  
Chenghai Xu
Keyword(s):  
Electron Microscopy ◽  
Real Time ◽  
Fibre Bundle ◽  
Carbon Composite ◽  
Carbon Composites ◽  
Matrix Interface ◽  
Notch Tip ◽  
Time Observation ◽  
Real Time Observation ◽  
Scanning Electron

The micro mechanisms of flexure damage at the notch tip in a three-dimensionally braided carbon/carbon composite (3D–C/C) were investigated in real-time through a Scanning Electron Microscopy. It was found that the damage was nucleated in the fibre bundle/matrix interface around the notch tip. The different damage modes were found in different directions of the 3D–C/C. The x-directional flexural specimens seem to be insensitive to the pre-notch while the z-directional flexural specimens seem to be sensitive to the pre-notch. Fibre yarns acted as an obstacle to crack propagation and it was necessary to increase the load to propagate the crack through the adjacent fibre yarn. Comparing with the x-directional flexural specimens, the forces could be better transmitted in z-directional flexural specimens because the fibres of z-direction bundles can tightly adjoin to each other.

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