Results 51 to 60 of about 222,819 (231)

Marginal topological properties of graphene: a comparison with topological insulators

, 2012
The electronic structures of graphene systems and topological insulators have closely-related features, such as quantized Berry phase and zero-energy edge states. The reason for these analogies is that in both systems there are two relevant orbital bands,
Alberto F Morpurgo, Delplace P Ullmo D Montambaux G, Ivar Martin, Jian Li, Markus Büttiker, Martin I, Volovik G   +6 more
core   +2 more sources

Discovering new two-dimensional topological insulators from computational screening [PDF]

, 2019
We have performed a computational screening of topological two-dimensional (2D) materials from the Computational 2D Materials Database (C2DB) employing density functional theory.
Andersen, Erik, Deilmann, Thorsten, Okugawa, Takuya, Olsen, Thomas, Thygesen, Kristian S., Torelli, Daniele   +5 more
core   +2 more sources

Skyrme insulators: insulators at the brink of superconductivity

, 2017
Current theories of superfluidity are based on the idea of a coherent quantum state with topologically protected, quantized circulation. When this topological protection is absent, as in the case of $^3$He-A, the coherent quantum state no longer supports
Chang, Po-Yao, Coleman, Piers, Erten, Onur, Tsvelik, Alexei M.   +3 more
core   +1 more source

Small insulator target detection based on multi‐feature fusion

IET Image Processing, 2023
The proportion of insulators in aerial power patrol images is small and the background of overhead lines is complex, often leading to incomplete and inaccurate detection of insulators.
Minan Tang, Kai Liang, Jiandong Qiu
doaj   +1 more source

Doping the holographic Mott insulator

, 2018
Mott insulators form because of strong electron repulsions, being at the heart of strongly correlated electron physics. Conventionally these are understood as classical "traffic jams" of electrons described by a short-ranged entangled product ground ...
A Donos, A Donos, A Donos, A Donos, A Donos, A Donos, A Donos, A Donos, A Donos, A Donos, A Mesaros, Alexander Krikun, B Fauqué, B Goutéraux, B Keimer, B Withers, B Withers, BW Langley, BX Zheng, E Banks, E Fradkin, E Witten, EW Huang, G Boebinger, G Policastro, GT Horowitz, GT Horowitz, H Ooguri, J Tranquada, J Zaanen, J Zaanen, J Zaanen, J Zaanen, J Zaanen, Jan Zaanen, JM Maldacena, JP Gauntlett, Koenraad Schalm, L Zhao, M Rangamani, M Rozali, M Rozenberg, M Vojta, MH Hamidian, P Anderson, P Bak, P Phillips, Q Li, R Comin, R Flauger, RG Cai, S de Haro, S Grozdanov, S Nakamura, S Rajasekaran, SS Gubser, T Andrade, T Faulkner, Tomas Andrade, V Pokrovsky, W McMillan, Y Li, Y Li, Y Liu   +63 more
core   +1 more source

Development of a ±660 kV DC transmission line arrester

The Journal of Engineering, 2019
In order to improve the lightning withstand level of ±660 kV DC transmission line in China, the authors had begun to develop the ±660 kV DC line arrester since 2014, which was developed successfully in 2016.
Shanqiang Gu, Wei Cao, Shuai Wan, Jiahong Chen, Jin Tan, Jian Wang, Jun Lv   +6 more
doaj   +1 more source

Fractionalized Topological Insulators

, 2015
Topological insulators have emerged as a major topic of condensed matter physics research with several novel applications proposed. Although there are now a number of established experimental examples of materials in this class, all of them can be ...
Fiete, Gregory A., Maciejko, Joseph
core   +1 more source

Accurate Technique for the Calibration of High-Voltage Capacitance and Dissipation Factor Bridges up to 1 kHz

Metrology
This paper presents a comprehensive methodology for the precise calibration of high-voltage capacitance and dissipation factor (DF) bridges. The technique involves meticulous adjustments using a digital high-precision phase and ratio-measuring system to ...
Mohamed Agazar, Hanane Saadeddine
doaj   +1 more source

Correlation effects in two-dimensional topological insulators

, 2013
Topological insulators have become one of the most active research areas in condensed matter physics. This article reviews progress on the topic of electronic correlations effects in the two-dimensional case, with a focus on systems with intrinsic spin ...
Assaad, F. F., Hohenadler, M.
core   +1 more source

Colloidal topological insulators [PDF]

, 2017
Topological insulators insulate in the bulk but exhibit robust conducting edge states protected by the topology of the bulk material. Here, we design a colloidal topological insulator and demonstrate experimentally the occurrence of edge states in a ...
Ehresmann, Arno, Fischer, Thomas M., Heras, Daniel de las, Holzinger, Dennis, Huhnstock, Rico, Jarosz, Adam, Koch, Iris, Loehr, Johannes, Stobiecki, Feliks, Tomita, Andreea, Urbaniak, Maciej   +10 more
core   +3 more sources