نتایج جستجو برای: weak topological center
تعداد نتایج: 486654 فیلتر نتایج به سال:
We report transport studies on magnetically doped Bi(2)Se(3) topological insulator ultrathin films grown by molecular beam epitaxy. The magnetotransport behavior exhibits a systematic crossover between weak antilocalization and weak localization with the change of magnetic impurity concentration, temperature, and magnetic field. We show that the localization property is closely related to the m...
We investigate topological mixing for Z and R actions associated with primitive substitutions on two letters. The characterization is complete if the second eigenvalue θ2 of the substitution matrix satisfies |θ2| 6= 1. If |θ2| < 1, then (as is well-known) the substitution system is not topologically weak mixing, so it is not topologically mixing. We prove that if |θ2| > 1, then topological mixi...
Gapless surface states on topological insulators are protected from elastic scattering on nonmagnetic impurities which makes them promising candidates for low-power electronic applications. However, for widespread applications, these states should have to remain coherent at ambient temperatures. Here, we studied temperature dependence of the electronic structure and the scattering rates on the ...
It is well known that domain representable spaces, that is topological spaces which are homeomorphic to the space of maximal elements of some domain, must be Baire. In this paper it is shown that every linearly ordered topological space (LOTS) is homeomorphic to an open dense subset of a weak domain representable space. This means that weak domain representable spaces need not be Baire. MR Clas...
We consider the two-dimensional topological Chern insulator in presence of static disorder. Generic quantum states this system are Anderson localized. However, topology requires a subset critical states, with diverging localization length (the analog ‘center Landau band states’ Hall insulator.) discuss geometric criteria for identification these at weak disorder, and their extension into regime...
Intriguing topological phases may appear in both insulating and semimetallic states. Topological insulators exhibit topologically nontrivial band inversion, while topological Dirac/Weyl semimetals show “relativistic” linear band crossings. Here, we report an unusual topological state of Pt3Sn, where the two topological features appear simultaneously. Based on first-principles calculations, we s...
We characterize weak continuity of an interval order on a topological space (X, τ) by using the concept of a scale in a topological space. Mathematics Subject Classification: 06A06; 54F05; 91B16
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