Results 41 to 50 of about 222,819 (231)

Dynamics of surface charge and electric field distributions on basin-type insulator in GIS/GIL due to voltage polarity reversal

High Voltage, 2020
In this study, a simulation model of surface charge accumulation has been established. The model considers three accumulation ways, i.e. electrical conduction within the gas, through insulator volume and along the insulator surface.
Yi Luo, Ju Tang, Ju Tang, Cheng Pan, Zijun Pan, Yi Li, Zhaolun Cui, Zhaolun Cui   +7 more
doaj   +1 more source

Effective hydrodynamic field theory and condensation picture of topological insulators

, 2015
While many features of topological band insulators are commonly discussed at the level of single-particle electron wave functions, such as the gapless Dirac spectrum at their boundary, it remains elusive to develop a {\it hydrodynamic} or {\it collective}
Chan, AtMa P. O., Fradkin, Eduardo, Kvorning, Thomas, Ryu, Shinsei   +3 more
core   +1 more source

Topological Anderson Insulator

Physical Review Letters, 2009
Disorder plays an important role in two dimensions, and is responsible for striking phenomena such as metal insulator transition and the integral and fractional quantum Hall effects. In this paper, we investigate the role of disorder in the context of the recently discovered topological insulator, which possesses a pair of helical edge states with ...
Chu, RL, Li, J, Shen, SQ, Jain, JK
openaire   +5 more sources

Highly efficient broadband THz mixing and upconversion with Dirac materials

Communications Physics
The use of the THz frequency domain in future network generations offers an unparalleled level of capacity, which can enhance innovative applications in wireless communication, analytics, and imaging.
Tatiana A. Uaman Svetikova, Igor Ilyakov, Alexey Ponomaryov, Thales V. A. G. de Oliveira, Christian Berger, Lena Fürst, Florian Bayer, Jan-Christoph Deinert, Gulloo Lal Prajapati, Atiqa Arshad, Elena G. Novik, Alexej Pashkin, Manfred Helm, Stephan Winnerl, Hartmut Buhmann, Laurens W. Molenkamp, Tobias Kiessling, Sergey Kovalev, Georgy V. Astakhov   +18 more
doaj   +1 more source

Coulomb Spike Model of Radiation Damage in Wide Band-Gap Insulators

Quantum Beam Science
A novel Coulomb spike concept is applied to the radiation damage induced in LiF and SiO2 with about the same mass density (~2.65 g cm−3) by Ni2860 and Kr3684 ions of 1.0-MeV u−1 energy for about the same electronic energy loss (~10 MeV µm−1).
Jean-Marc Costantini, Tatsuhiko Ogawa
doaj   +1 more source

Determining topological order from a local ground state correlation function

, 2011
Topological insulators are physically distinguishable from normal insulators only near edges and defects, while in the bulk there is no clear signature to their topological order.
E. M. Lifshitz, J. von Neumann, Yaacov E. Kraus, Zohar Ringel   +3 more
core   +1 more source

Insulator defect detection based on improved Yolov5s

Frontiers in Earth Science
The stable operation of a power supply system is inseparable from the work of detecting defects in transmission lines. However, the insulator defect detection model based on deep learning is widely used in wire inspection work.
Dehong Wei, Bo Hu, Chaoyang Shan, Hanlin Liu   +3 more
doaj   +1 more source

Experimental studies on cutting temperature and its effect in high speed turning of difficult-to-cut materials with ceramic tool

Nihon Kikai Gakkai ronbunshu, 2017
In high speed turning, six kinds of materials, namely, Ti-6Al-4V, Inconel718, SUS304, S50C, Copper and Aluminum are machined with a ceramic cutting tool in order to investigate the influence of the cutting speed on the temperature of the cutting tool ...
Takashi UEDA, Yuki HIRAI, Eiji SHAMOTO
doaj   +1 more source

The types of Mott insulator

, 2002
There are two classes of Mott insulators in nature, distinguished by their responses to weak doping. With increasing chemical potential, Type I Mott insulators undergo a first order phase transition from the undoped to the doped phase. In the presence of
B. Keimer, C. Howald, C. Nayak, D.-H. Lee, D.I. Khomskii, D.R. Nelson, D.S. Fisher, D.S. Rokhsar, Dung-Hai Lee, E. Dagotto, E.L. Nagaev, E.L. Nagaev, G.G. Batrouni, J.M. Leinaas, J.M. Tranquada, K.M. Lang, L. Balents, L. Ioffe, L. Pryadko, M. Blume, M. Greiner, M. Imada, M. Oshikawa, M. Seul, M.P.A. Fisher, P.B. Visscher, P.W. Anderson, R. Moessner, R. Moessner, R.T. Scalettar, S. Teitel, S.-C. Zhang, S.A. Kivelson, S.A. Kivelson, S.H. Pan, Steven A. Kivelson, T. Senthil, U. Löw, V.J. Emery, V.J. Emery, V.J. Emery, V.N. Popov, Y. Furukawa, Y. Tokura   +43 more
core   +1 more source

Strong energy-momentum dispersion of phonon-dressed carriers in the lightly doped band insulator SrTiO$_3$ [PDF]

, 2010
Much progress has been made recently in the study of the effects of electron-phonon (el-ph) coupling in doped insulators using angle resolved photoemission (ARPES), yielding evidence for the dominant role of el-ph interactions in underdoped cuprates.
Alexandrov A S, B Moritz, C-C Chen, D H Lu, D van der Marel, Devreese J T, F Baumberger, J Zaanen, Meevasana W, N Nagaosa, R G Moore, R H He, S-I Fujimori, S-K Mo, T P Devereaux, Verbist G, W Meevasana, X J Zhou, Z-X Shen   +18 more
core   +5 more sources