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1. |
Record Nr. |
UNINA9910767510203321 |
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Autore |
Bao Changhua |
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Titolo |
Electronic Band Structure Engineering and Ultrafast Dynamics of Dirac Semimetals / / by Changhua Bao |
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Pubbl/distr/stampa |
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Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2023 |
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ISBN |
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Edizione |
[1st ed. 2023.] |
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Descrizione fisica |
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1 online resource (91 pages) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061 |
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Disciplina |
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Soggetti |
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Condensed matter |
Semiconductors |
Optics |
Optical materials |
Photonics |
Materials science - Data processing |
Electronic structure |
Quantum chemistry - Computer programs |
Condensed Matter Physics |
Light-Matter Interaction |
Optical Materials |
Ultrafast Photonics |
Electronic Structure Calculations |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Introduction -- Experimental Techniques -- Development of Novel Trarpes With Tunable Probe Photon Energy for 3D Quantum Materials -- Chiral Symmetry Breaking in Kekulé-ordered Graphene -- Coexistence of Flat Band and Kekulé Order. |
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Sommario/riassunto |
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This book highlights the doctoral research of the author on electronic band structure engineering and ultrafast dynamics of Dirac semimetals. Dirac semimetals exhibit unique electronic band structure and novel physical properties with rich light-matter interaction, which inspires a wide range of potential applications. Enabling band engineering and |
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revealing ultrafast dynamics of Dirac semimetals is therefore important. In the research work covered by the book, the first ultrafast time- and angle-resolved photoemission spectroscopy with tunable probe photon energy is developed, providing new opportunities for exploring ultrafast dynamics in 3D quantum materials. Using the spectroscopy, the author investigates the band structure engineering and ultrafast dynamics of Dirac semimetals, realizing the long-sought-after chiral symmetry breaking in a Kekulé-ordered graphene with flat band and revealing the ultrafast dynamics of Dirac fermions in 3D Dirac semimetal for the first time. The work advances the research of the electronic structure of Dirac semimetals in two aspects. Firstly, it identifies the Kekulé-ordered graphene as a new system for exploring chiral symmetry breaking- related physics and flat band- induced instability, providing a very rare system to investigate their interplay. Secondly, it solves the long-standing challenge of directly visualizing the non-equilibrium electronic structure of 3D Dirac semimetal and opens up new opportunities for exploring the light-matter interaction in 3D quantum materials, especially the light-induced topological phase transitions in 3D topological materials. |
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2. |
Record Nr. |
UNINA9910134183003321 |
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Titolo |
Journal of physics . D Applied physics |
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Pubbl/distr/stampa |
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[London?], : Institute of Physics and IOP Pub., 1970- |
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ISSN |
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Soggetti |
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Physics |
Physique |
Periodical |
Computer network resources. |
Periodicals. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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Note generali |
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Refereed/Peer-reviewed |
Title from title screen. |
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