scholarly journals Discovery of Dome‐Shaped Superconducting Phase and Anisotropic Transport in a van der Waals Layered Candidate NbIrTe 4 under Pressure

2021 ◽  
pp. 2103250
Author(s):  
Meiling Jin ◽  
Peng Yu ◽  
Changzeng Fan ◽  
Qiang Li ◽  
Panlong Kong ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Superconducting Phase ◽  
Anisotropic Transport

Observation of large in-plane anisotropic transport in van der Waals semiconductor Nb2SiTe4

2021 ◽  
Author(s):  
Kaiyao Zhou ◽  
Jun Deng ◽  
Long Chen ◽  
Wei Xia ◽  
Yanfeng Guo ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Anisotropic Transport

Strain-tunable electronic structure and anisotropic transport properties in Janus MoSSe and g-SiC van der Waals heterostructure

2021 ◽  
Author(s):  
Yuliang Liu ◽  
Wenkai Zhao ◽  
Ying Shi ◽  
Chuan-Lu Yang
Keyword(s):  
Electronic Structure ◽  
Transport Properties ◽  
First Principles ◽  
Van Der Waals ◽  
First Principles Calculations ◽  
Van Der Waals Heterostructures ◽  
Van Der Waals Heterostructure ◽  
Anisotropic Transport ◽  
Optoelectronic Applications

The van der Waals heterostructures (vdWHs) create a multi-purpose platform to design unique structures for efficient photovoltaic and optoelectronic applications. In this paper, on the basis of the first-principles calculations,...

Polytypism, Anisotropic Transport, and Weyl Nodes in the van der Waals Metal TaFeTe4

2020 ◽  
Author(s):  
Ren A. Wiscons ◽  
Yeongsu Cho ◽  
Sae Young Han ◽  
Avalon H. Dismukes ◽  
Elena Meirzadeh ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Anisotropic Transport

Secondary electron imaging of YBa2Cu3O7-x high-Tc superconductors in Scanning Transmission Electron Microscope

1989 ◽  
Vol 47 ◽  
pp. 684-685
Author(s):  
D. R. Liu ◽  
D. B. Williams
Keyword(s):  
Electron Microscope ◽  
Secondary Electron ◽  
Scanning Transmission Electron Microscope ◽  
Superconducting Phase ◽  
Contrast Imaging ◽  
High Tc ◽  
Bright Contrast ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Electron Imaging

The secondary electron imaging technique in a scanning electron microscope (SEM) has been used first by Millman et al. in 1987 to distinguish between the superconducting phase and the non-superconducting phase of the YBa2Cu3O7-x superconductors. They observed that, if the sample was cooled down below the transition temperature Tc and imaged with secondary electrons, some regions in the image would show dark contrast whereas others show bright contrast. In general, the contrast variation of a SEM image is the variation of the secondary electron yield over a specimen, which in turn results from the change of topography and conductivity over the specimen. Nevertheless, Millman et al. were able to demonstrate with their experimental results that the dominant contrast mechanism should be the conductivity variation and that the regions of dark contrast were the superconducting phase whereas the regions of bright contrast were the non-superconducting phase, because the latter was a poor conductor and consequently, the charge building-up resulted in high secondary electron emission. This observation has since aroused much interest amoung the people in electron microscopy and high Tc superconductivity. The present paper is the preliminary report of our attempt to carry out the secondary electron imaging of this material in a scanning transmission electron microscope (STEM) rather than in a SEM. The advantage of performing secondary electron imaging in a TEM is obvious that, in a TEM, the spatial resolution is higher and many more complementary techniques, e.g, diffraction contrast imaging, phase contrast imaging, electron diffraction and various microanalysis techniques, are available.

Infrared diode laser jet spectroscopy of the van der Waals complex (N2O)2

1997 ◽  
Vol 91 (4) ◽  
pp. 689-696 ◽  
Author(s):  
HAI-BO QIAN ◽  
WOUTER HERREBOUT ◽  
BRIAN HOWARD
Keyword(s):  
Diode Laser ◽  
Van Der Waals ◽  
Van Der Waals Complex

Applications of the augmented van der waals theory of fluids

1978 ◽  
Vol 75 ◽  
pp. 347-352 ◽  
Author(s):  
Aleksander Kreglewski ◽  
Stephen S. Chen
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Theory

Molecular motion in the van der Waals solid C6H6:C6F6

1992 ◽  
Vol 89 ◽  
pp. 1755-1766 ◽  
Author(s):  
JH Williams ◽  
RP White
Keyword(s):  
Molecular Motion ◽  
Van Der Waals
Sign in / Sign up

Export Citation Format

Share Document