Results 21 to 30 of about 487,700 (284)

Electrically Tunable Quantum Spin Hall State in Topological Crystalline Insulator Thin films [PDF]

open access: yes, 2015
Based on a combination of $k \cdot p$ theory, band topology analysis and electronic structure calculations, we predict the (111) thin films of the SnTe class of three-dimensional (3D) topological crystalline insulators realize the quantum spin Hall phase
Fu, Liang, Liu, Junwei
core   +3 more sources

FRACTAL STRUCTURE OF TITANIUM NITRITE DEPOSITED ON STAINLESS STEEL SUBSTRATE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014
On the basis of images obtained using scanning tunneling microscope, it was shown that the fractal dimension can be considered as some universal surface characteristic of the titanium nitrite, deposited on stainless steel.
Yu..V. Brylkin
doaj   +1 more source

Circles in the Sky: Finding Topology with the Microwave Background Radiation [PDF]

open access: yes, 1996
If the universe is finite and smaller than the distance to the surface of last scatter, then the signature of the topology of the universe is writ large on the microwave background sky.
  +22 more
core   +4 more sources

Topological states on the gold surface [PDF]

open access: yesNature Communications, 2015
AbstractGold surfaces host special electronic states that have been understood as a prototype of Shockley surface states. These surface states are commonly employed to benchmark the capability of angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling spectroscopy.
Binghai Yan   +9 more
openaire   +6 more sources

Multi-legged adaptable crawler capable of maintaining a constant pose locomotion over rugged terrain

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, we introduce practical design and hardware implementation issues of an adaptable crawler mechanism for a mobile robot, enabling it to maintaining its constant desired pose when moving.
Shu TAKAIRA   +2 more
doaj   +1 more source

Transmission of topological surface states through surface barriers [PDF]

open access: yesNature, 2010
Topological surface states are a class of novel electronic states that are of potential interest in quantum computing or spintronic applications. Unlike conventional two-dimensional electron states, these surface states are expected to be immune to localization and to overcome barriers caused by material imperfection.
Seo, Jungpil   +5 more
openaire   +3 more sources

The metric space of geodesic laminations on a surface II: small surfaces [PDF]

open access: yes, 2005
We continue our investigation of the space of geodesic laminations on a surface, endowed with the Hausdorff topology. We determine the topology of this space for the once-punctured torus and the 4-times-punctured sphere.
Bonahon, Francis, Zhu, Xiaodong
core   +2 more sources

Neutral surface topology [PDF]

open access: yesOcean Modelling, 2019
Neutral surfaces, along which most of the mixing in the ocean occurs, are notoriously difficult objects: they do not exist as well-defined surfaces, and as such can only be approximated. In a hypothetical ocean where neutral surfaces are well-defined, the in-situ density on the surface is a multivalued function of the pressure on the surface ...
openaire   +2 more sources

RELATION BETWEEN FRACTAL DIMENSION AND SURFACE ROUGHNESS FOR THE COPPER SAMPLES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Microscopic characteristics of copper surfaces with different roughness were produced using scanning tunnel microscope and fractal analysis.
Yu.V. Brylkin, A.L. Kusov
doaj  

Topology Analysis of Bicycle Rim Brake Pad to Improve Braking Performance

open access: yesMATEC Web of Conferences, 2018
Various parameters of rubber brake pad tribology will affect the braking performance of a rim brake system of a bicycle. Out of those, three main parameters are contact length of brake pad, surface topology of friction surface, and the thickness of rim ...
Keong Le-Onn, Teoh Choe-Yung
doaj   +1 more source

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