Topological States on Interfaces Protected by Symmetry
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...
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| Ngôn ngữ: | English |
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Springer
2016
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oai:scholar.dlu.edu.vn:DLU123456789-598702023-11-11T06:54:41Z Topological States on Interfaces Protected by Symmetry Takahashi, Ryuji Topological dynamics Symmetry Interfaces 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. 2016-03-21T08:51:04Z 2016-03-21T08:51:04Z 2015 Book 978-4-431-55534-6 978-4-431-55533-9 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/59870 en application/pdf Springer |
| institution |
Thư viện Trường Đại học Đà Lạt |
| collection |
Thư viện số |
| language |
English |
| topic |
Topological dynamics Symmetry Interfaces |
| spellingShingle |
Topological dynamics Symmetry Interfaces Takahashi, Ryuji Topological States on Interfaces Protected by Symmetry |
| description |
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. |
| format |
Book |
| author |
Takahashi, Ryuji |
| author_facet |
Takahashi, Ryuji |
| author_sort |
Takahashi, Ryuji |
| title |
Topological States on Interfaces Protected by Symmetry |
| title_short |
Topological States on Interfaces Protected by Symmetry |
| title_full |
Topological States on Interfaces Protected by Symmetry |
| title_fullStr |
Topological States on Interfaces Protected by Symmetry |
| title_full_unstemmed |
Topological States on Interfaces Protected by Symmetry |
| title_sort |
topological states on interfaces protected by symmetry |
| publisher |
Springer |
| publishDate |
2016 |
| url |
https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/59870 |
| _version_ |
1782536445216423936 |