ProphetesAI is thinking...
nematic
Answers
MindMap
Loading...
Sources
nematic
nematic, a. Physical Chem. (nɛˈmætɪk) [ad. F. nématique (G. Friedel 1922, in Ann. de Physique XVIII. 227), f. Gr. νῆµα, νήµατ- thread: see -ic.] Applied to (the state of) a mesophase in which the molecules all have the same orientation but are not arranged in well-defined planes (as they are in a sm...
Oxford English Dictionary
prophetes.ai
Biaxial nematic
In a frame co-aligned with optical axes the second rank order parameter tensor of a biaxial nematic has the form
where is the standard nematic scalar The positional order parameter for the uniaxial nematic phase is 0.75 to 1.5 times the mesogen length and for the biaxial nematic phase 2 to 3.3 times
wikipedia.org
en.wikipedia.org
smectic
ˈsmectic, a. (and n.) [ad. L. smēcticus (Pliny), ad. Gr. σµηκτικός, f. σµήχειν to wipe, cleanse; cf. smegma.] 1. Cleansing, abstersive, detergent. rare.1675 Evelyn Terra (1676) 40 Smooth to the touch, as the most Smectic Earths and Marles themselves. 1686 Plot Staffordsh. 124 The Smectic and Figulin...
Oxford English Dictionary
prophetes.ai
Twisted nematic field effect
The twisted nematic effect (TN-effect) was a main technology breakthrough that made LCDs practical. Description
The twisted nematic effect is based on the precisely controlled realignment of liquid crystal molecules between different ordered molecular
wikipedia.org
en.wikipedia.org
Paranematic susceptibility
As a result of the diamagnetic anisotropy of liquid crystal molecules, nematic order can be produced by the application of a magnetic field. If a magnetic field is applied to a nematic liquid crystal in the isotropic phase then the order is given by:
The proportionality constant is the paranematic
wikipedia.org
en.wikipedia.org
4-Cyano-4'-pentylbiphenyl
4-Cyano-4'-pentylbiphenyl is a commonly used nematic liquid crystal with the chemical formula C18H19N. The liquid crystal 5CB undergoes a phase transition from a crystalline state to a nematic state at 22.5 °C and it goes from a nematic to an isotropic state
wikipedia.org
en.wikipedia.org
Mesogen
The nematic phase (N) is the least ordered and most fluid liquid crystalline state or mesophase that is based on the rigid core of mesogen moieties. The nematic phase leads to long range orientational order and short range positional order of mesogens.
wikipedia.org
en.wikipedia.org
Martin Schadt
Biography
In 1970, the physicists Martin Schadt and Wolfgang Helfrich invented the twisted nematic field effect (TN-effect) in the Central Research Laboratories In 1970, shortly after the invention of the TN-effect, he developed the first commercial room temperature nematic liquid crystal mixture with positive
wikipedia.org
en.wikipedia.org
Electronic structure and nematic phase transition in ... - IOPscience
We report comprehensive angle-resolved photoemission investigations on the electronic structure of single crystal multiple-layer FeSe films grown on CaF 2 substrate by pulsed laser deposition (PLD) method. Measurements on FeSe/CaF 2 samples with different superconducting transition temperatures of 4 K, 9 K, and 14 K reveal electronic difference in their Fermi surface and band structure.
iopscience.iop.org
DSTN
DSTN (double super twisted nematic), also known as dual-scan super twisted nematic or simply dual-scan, is an LCD technology in which a screen is divided It is an improved form of supertwist nematic display that offers low power consumption but inferior sharpness and brightness compared to TFT screens.
wikipedia.org
en.wikipedia.org
如何评价 MIT Pablo Jarillo-Herrero 研究组在石墨烯超晶格体系中发现超导?
这两篇文章的物理内涵和重要性在之前几个回答中已经基本涵盖了,总结一下 其他回答里也提到了,后续的研究方向包括这种奇特的超导相的对称性(pairing symmetry)、赝能隙(pseudo gap)、向列相(nematic phase, 2018/03/08纠正)等等等等。 感谢评论区指出对nematic phase翻译不当。 参考文献: [1] Cao, Y., Fatemi, V., et. al.
zhihu
www.zhihu.com
STN液晶
CSTN - Color Super-Twist Nematic,彩色STN,最早的彩色液晶,主要用于移动电话和便携式游戏机(例如 Game Boy Color)。 DSTN - Dual-scan Super Twisted Nematic,双扫描STN,STN液晶分为上下2个部分分别扫描,此举是为了加快扫描速度消除画面残像。早期的笔记本电脑上使用。
wikipedia.org
zh.wikipedia.org
Ammonium perfluorononanoate
The nematic phase is of the type I, and the aggregates have a positive and diamagnetic anisotropy. The change of phase at the lamellar-nematic temperature has been ascribed to order-disorder transitions.
wikipedia.org
en.wikipedia.org
为何高温超导的机理问题这么困难?
再比如 铁基超导体中的 nematic phase,利用朗道理论看就会发现其中的Sructural distortion order, charge/orbital order 以及 spin order 三种序参量都会影响其自由能,导致很难区分是哪种序参量主导了nematic phase transition
zhihu
www.zhihu.com
STN display
A super-twisted nematic (STN) display is a type of monochrome passive-matrix liquid crystal display (LCD). FFSTN: Double film super-twist nematic
MSTN: Monochrome super-twist nematic
CCSTN: Color Coded Super Twist Nematic.
wikipedia.org
en.wikipedia.org