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  1. Article ; Online: Two paths to intrinsic quantization.

    Wakefield, Joshua P / Checkelsky, Joseph G

    Science (New York, N.Y.)

    2020  Volume 367, Issue 6480, Page(s) 848–849

    Language English
    Publishing date 2020-02-21
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.aba5313
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Terahertz parametric amplification as a reporter of exciton condensate dynamics.

    Haque, Sheikh Rubaiat Ul / Michael, Marios H / Zhu, Junbo / Zhang, Yuan / Windgätter, Lukas / Latini, Simone / Wakefield, Joshua P / Zhang, Gu-Feng / Zhang, Jingdi / Rubio, Angel / Checkelsky, Joseph G / Demler, Eugene / Averitt, Richard D

    Nature materials

    2024  

    Abstract: Condensates are a hallmark of emergence in quantum materials such as superconductors and charge density waves. Excitonic insulators are an intriguing addition to this library, exhibiting spontaneous condensation of electron-hole pairs. However, ... ...

    Abstract Condensates are a hallmark of emergence in quantum materials such as superconductors and charge density waves. Excitonic insulators are an intriguing addition to this library, exhibiting spontaneous condensation of electron-hole pairs. However, condensate observables can be obscured through parasitic coupling to the lattice. Here we employ nonlinear terahertz spectroscopy to disentangle such obscurants through measurement of the quantum dynamics. We target Ta
    Language English
    Publishing date 2024-01-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2088679-2
    ISSN 1476-4660 ; 1476-1122
    ISSN (online) 1476-4660
    ISSN 1476-1122
    DOI 10.1038/s41563-023-01755-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Crystal Net Catalog of Model Flat Band Materials

    Neves, Paul M. / Wakefield, Joshua P. / Fang, Shiang / Nguyen, Haimi / Ye, Linda / Checkelsky, Joseph G.

    2023  

    Abstract: Flat band systems are currently under intense investigation in quantum materials, optical lattices, and metamaterials. These efforts are motivated by potential realization of strongly correlated phenomena enabled by frustration-induced flat band ... ...

    Abstract Flat band systems are currently under intense investigation in quantum materials, optical lattices, and metamaterials. These efforts are motivated by potential realization of strongly correlated phenomena enabled by frustration-induced flat band dispersions; identification of candidate platforms plays an important role in these efforts. Here, we develop a high-throughput materials search for bulk crystalline flat bands by automated construction of uniform-hopping near-neighbor tight binding models. We show that this approach captures many of the essential features relevant to identifying flat band lattice motifs in candidate materials in a computationally inexpensive manner. We apply this algorithm to 139,367 materials in the Materials Project database and identify 63,076 materials that host at least one flat band elemental sublattice. We further categorize these candidate systems into at least 31,635 unique flat band crystal nets and identify candidates of interest from both lattice and band structure perspectives. This work expands the number of known flat band lattices that exist in physically realizable crystal structures and classifies the majority of these systems by the underlying lattice, providing new insights for familiar (e.g. kagome, pyrochlore, Lieb, and dice) as well as previously unknown motifs.

    Comment: 29 pages, 8 figures, 2 tables
    Keywords Condensed Matter - Materials Science
    Subject code 530
    Publishing date 2023-03-04
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Three-dimensional flat bands in pyrochlore metal CaNi

    Wakefield, Joshua P / Kang, Mingu / Neves, Paul M / Oh, Dongjin / Fang, Shiang / McTigue, Ryan / Frank Zhao, S Y / Lamichhane, Tej N / Chen, Alan / Lee, Seongyong / Park, Sudong / Park, Jae-Hoon / Jozwiak, Chris / Bostwick, Aaron / Rotenberg, Eli / Rajapitamahuni, Anil / Vescovo, Elio / McChesney, Jessica L / Graf, David /
    Palmstrom, Johanna C / Suzuki, Takehito / Li, Mingda / Comin, Riccardo / Checkelsky, Joseph G

    Nature

    2023  Volume 623, Issue 7986, Page(s) 301–306

    Abstract: Electronic flat-band materials host quantum states characterized by a quenched kinetic energy. These flat bands are often conducive to enhanced electron correlation effects and emergent quantum phases of ... ...

    Abstract Electronic flat-band materials host quantum states characterized by a quenched kinetic energy. These flat bands are often conducive to enhanced electron correlation effects and emergent quantum phases of matter
    Language English
    Publishing date 2023-11-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-023-06640-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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