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In this book, the author theoretically studies two aspects of topological states. First, novel states arising from hybridizing surface states of topological insulators are theoretically introduced. As a remarkable example, the author shows the existence of gapless interface states at the interface between two different topological insulators, which belong to the same topological phase. While such interface states are usually gapped due to hybridization, the author proves that the interface states are in fact gapless when the two topological insulators have opposite chiralities. This is the first time that gapless topological novel interface states protected by mirror symmetry have been proposed. Second, the author studies the Weyl semimetal phase in thin topological insulators subjected to a magnetic field. This Weyl semimetal phase possesses edge states showing abnormal dispersion, which is not observed without mirror symmetry. The author explains that the edge states gain a finite velocity by a particular form of inversion symmetry breaking, which makes it possible to observe the phenomenon by means of electric conductivity.
Physics. --- Phase Transitions and Multiphase Systems. --- Strongly Correlated Systems, Superconductivity. --- Surfaces and Interfaces, Thin Films. --- Solid State Physics. --- Surface and Interface Science, Thin Films. --- Surfaces (Physics). --- Physique --- Surfaces (Physique) --- Physics --- Physical Sciences & Mathematics --- Atomic Physics --- Interfaces (Physical sciences) --- Symmetry (Physics) --- Topological dynamics. --- Dynamics, Topological --- Invariance principles (Physics) --- Symmetry (Chemistry) --- Solid state physics. --- Superconductivity. --- Superconductors. --- Phase transitions (Statistical physics). --- Interfaces (Physical sciences). --- Thin films. --- Materials --- Surfaces. --- Conservation laws (Physics) --- Surface chemistry --- Surfaces (Physics) --- Differentiable dynamical systems --- Surfaces (Technology) --- Materials—Surfaces. --- Solids --- Films, Thin --- Solid film --- Solid state electronics --- Coatings --- Thick films --- Superconducting materials --- Superconductive devices --- Cryoelectronics --- Electronics --- Electric conductivity --- Critical currents --- Superfluidity --- Phase changes (Statistical physics) --- Phase transitions (Statistical physics) --- Phase rule and equilibrium --- Statistical physics --- Surface phenomena --- Friction --- Tribology --- Surfaces
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In this book, the author theoretically studies two aspects of topological states. First, novel states arising from hybridizing surface states of topological insulators are theoretically introduced. As a remarkable example, the author shows the existence of gapless interface states at the interface between two different topological insulators, which belong to the same topological phase. While such interface states are usually gapped due to hybridization, the author proves that the interface states are in fact gapless when the two topological insulators have opposite chiralities. This is the first time that gapless topological novel interface states protected by mirror symmetry have been proposed. Second, the author studies the Weyl semimetal phase in thin topological insulators subjected to a magnetic field. This Weyl semimetal phase possesses edge states showing abnormal dispersion, which is not observed without mirror symmetry. The author explains that the edge states gain a finite velocity by a particular form of inversion symmetry breaking, which makes it possible to observe the phenomenon by means of electric conductivity.
Pure sciences. Natural sciences (general) --- Statistical physics --- Thermal properties of solids --- Solid state physics --- Physics --- Surface chemistry --- oppervlaktechemie --- supergeleiding --- vaste stof --- materie (fysica) --- oppervlakte-onderzoek --- fysica --- fysicochemie --- interfaces
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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact
herbal medicine --- Kampo medicine --- Ninjin'yoeito --- frailty --- aging
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