Results 101 to 110 of about 7,794,127 (372)

Detection of Surface States in Quantum Materials ZrTe₂ and TmB₄ by Scanning Tunneling Microscopy

Condensed Matter, 2023
Scanning Tunneling Microscopy and Spectroscopy (STM/S), with its exceptional surface sensitivity and exquisite energy resolution, is well suited for the investigation of surface states down to atomic length scales. As such, it became an essential tool to
Maria Victoria Ale Crivillero, Jean C. Souza, Vicky Hasse, Marcus Schmidt, Natalya Shitsevalova, Slavomir Gabáni, Konrad Siemensmeyer, Karol Flachbart, Steffen Wirth   +8 more
doaj   +1 more source

A Time-Reversal Invariant Topological Phase at the Surface of a 3D Topological Insulator [PDF]

J. Stat. Mech. (2013) P09016, 2013
A 3D fermionic topological insulator has a gapless Dirac surface state protected by time-reversal symmetry and charge conservation symmetry. The surface state can be gapped by introducing ferromagnetism to break time-reversal symmetry, introducing superconductivity to break charge conservation, or entering a topological phase.
arxiv   +1 more source

Constraints On The Topology Of The Universe From The WMAP First-Year Sky Maps

, 2004
We compute the covariance expected between the spherical harmonic coefficients $a_{\ell m}$ of the cosmic microwave temperature anisotropy if the universe had a compact topology.
A. Kogut, de Sitter W., N. G. Phillips, Sokolov I. Y., Starobinsky A. A., Zel’dovich Y. B.   +5 more
core   +1 more source

Distinct Fermi Surface Topology and Nodeless Superconducting Gap in (Tl0.58Rb0.42)Fe1.72Se2 Superconductor

, 2011
High resolution angle-resolved photoemission measurements have been carried out to study the electronic structure and superconducting gap of the (Tl$_{0.58}$Rb$_{0.42}$)Fe$_{1.72}$Se$_2$ superconductor with a T$_c$=32 K.
Chen, Chuangtian, Dong, Chiheng, Dong, Xiaoli, Fang, Minghu, He, Junfeng, He, Shaolong, Jia, Xiaowen, Liu, Guodong, Liu, Shanyu, Mou, Daixiang, Peng, Qinjun, Peng, Yingying, Wang, Hangdong, Wang, Xiaoyang, Wang, Zhimin, Xu, Zuyan, Yang, Feng, Yu, Li, Zhang, Jun, Zhang, Shenjin, Zhao, Lin, Zhou, X. J.   +21 more
core   +1 more source

Atmospheric Ice Adhesion on Water-Repellent Coatings: Wetting and Surface Topology Effects.

Langmuir, 2015
Recent studies have shown the potential of water-repellent surfaces such as superhydrophobic surfaces in delaying ice accretion and reducing ice adhesion.
Y. H. Yeong, A. Milionis, E. Loth, J. Sokhey, A. Lambourne   +4 more
semanticscholar   +1 more source

Event-triggered joint connectivity topology containment control for unmanned surface ship systems under time delay

Journal of Applied Science and Engineering, 2023
For the containment control problem of unmanned surface ship systems (USSs) with time delay and limited communication bandwidth, this paper proposes a distributed event-triggered control strategy using a joint connection switching topology.
Binfeng Tang, Yuge Liu, Ying Huang
doaj   +1 more source

Topological charges and the genus of surfaces [PDF]

Journal of Geometry and Physics, 1997
We show that the topological charge of the n-soliton solution of the sine-Gordon equation n is related to the genus g > 1 of a constant negative curvature compact surface described by this configuration. The relation is n=2(g-1), where n is even. The moduli space of complex dimension B(g)=3(g-1) corresponds precisely to the freedom to choosing the ...
Antonio J. Segui-Santonja, Luis J. Boya
openaire   +3 more sources

Is a Knowledge of Surface Topology and Contact Angles Enough to Define the Drop Impact Outcome?

Langmuir, 2016
It is well known that a superhydrophobic surface may not be able to repel impacting droplets because of the so-called Cassie-to-Wenzel transition. It has been proven that a critical value of the receding contact angle (θR) exists for the complete rebound
I. Malavasi, Federico Veronesi, A. Caldarelli, M. Zani, M. Raimondo, M. Marengo   +5 more
semanticscholar   +1 more source

Elasticity of Diametrically Compressed Microfabricated Woodpile Lattices

Advanced Engineering Materials, EarlyView.
Modulus–porosity relationship is derived for woodpile lattices with struts under diametrical compression. The formula presented here that Young's modulus is proportional to the square of the volume fraction E˜ρ2$E \sim \left(\rho\right)^{2}$ is shown to be consistent with computations and laboratory experiments on 3D‐printed samples.
Faezeh Shalchy, Atul Bhaskar
wiley   +1 more source

On the existence of high index topologically minimal surfaces [PDF]

arXiv, 2009
The topological index of a surface was previously introduced by the first author as the topological analogue of the index of an unstable minimal surface. Here we show that surfaces of arbitrarily high topological index exist.
arxiv