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    <title>Flatland: news on TaS₂, TaSe₂</title>
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    <description>The newest items tagged TaS₂, TaSe₂ in the Flatland news feed.</description>
    <language>en</language>
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    <lastBuildDate>Mon, 05 Oct 2026 08:10:53 GMT</lastBuildDate>
    <item>
      <title>Reversible Phase-Transition-Enabled Broadband Infrared Photodetection in 1T-TaS2</title>
      <link>https://doi.org/10.1021/acsnano.6c13084</link>
      <guid isPermaLink="true">https://doi.org/10.1021/acsnano.6c13084</guid>
      <pubDate>Fri, 02 Oct 2026 08:01:31 GMT</pubDate>
      <description>ACS Nano: Broadband infrared photodetectors operating at room temperature are fundamentally limited by the lack of efficient gain mechanisms for weak optical signals. Phase-transition materials provide a promising route for intrinsic signal amplification owing to their extreme sensitivity near critical transition boundaries.…</description>
      <category>Engineering</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Equilibrium Stabilization of a Hidden Phase Like Metallic State in 1T-TaS2</title>
      <link>https://arxiv.org/abs/2605.22292</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.22292</guid>
      <pubDate>Wed, 30 Sep 2026 04:00:00 GMT</pubDate>
      <description>arXiv: Electronic phases that lie outside the equilibrium ground state offer a route to explore competing configurations in correlated materials. In 1T-TaS2, ultrafast excitation accesses a metallic hidden phase that is distinct from the commensurate insulating ground state. Here we use angle-resolved photoemission…</description>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Termination-Dependent Surface States and Magnetic Fingerprints of Chiral Helimagnet Cr1/3TaS2</title>
      <link>https://doi.org/10.1021/acsnano.6c08594</link>
      <guid isPermaLink="true">https://doi.org/10.1021/acsnano.6c08594</guid>
      <pubDate>Tue, 29 Sep 2026 03:02:34 GMT</pubDate>
      <description>ACS Nano: Chiral helimagnets based on intercalated transition-metal dichalcogenides, characterized by nanoscale spin ordering, provide a powerful route to engineer chiral spin textures (e.g., the topologically protected magnetic solitons) and explore emergent electronic functionalities associated with their surface and interface…</description>
      <category>Theory</category>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Discovery and Manipulation of a Single Polaron in a Monolayer Mott Insulator</title>
      <link>https://doi.org/10.1021/acs.nanolett.6c04363</link>
      <guid isPermaLink="true">https://doi.org/10.1021/acs.nanolett.6c04363</guid>
      <pubDate>Sun, 27 Sep 2026 17:01:43 GMT</pubDate>
      <description>Nano Letters: Polarons are quasiparticles composed of excess electrons and local lattice distortions that are crucial for understanding many-body physics. However, atomic-scale observation and manipulation of an intrinsic polaron in strongly correlated systems still remain elusive. Here, we report the discovery and manipulation of a…</description>
      <category>Experiment</category>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Moiré Mott correlated mosaics in twisted bilayer 1T-TaS₂</title>
      <link>https://arxiv.org/abs/2604.02001</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2604.02001</guid>
      <pubDate>Mon, 21 Sep 2026 04:00:00 GMT</pubDate>
      <description>arXiv: The tunability and twist engineering of van der Waals materials enable the emergence of electronic states not present in individual monolayers. Among them, monolayer 1T-TaS₂ is a well-known Mott insulating system, whose star-of-David charge density wave reconstruction realizes an emergent triangular lattice of local…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Surface Reconstruction-Driven Insulating Behavior in Metallic Charge-Density-Wave 1T-TaSe₂</title>
      <link>https://arxiv.org/abs/2607.06995</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2607.06995</guid>
      <pubDate>Fri, 18 Sep 2026 04:00:00 GMT</pubDate>
      <description>arXiv: Bulk 1T-TaSe₂ is metallic, yet its surface consistently exhibits an insulating gap -- a dichotomy long attributed to a surface Mott insulator driven by enhanced electron correlations. Using density functional theory calculations, we show that this insulating surface instead originates from a charge-density-wave (CDW)…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Unconventional anisotropic charge dynamics in bulk 1T-TaS₂ induced by interlayer dimerization</title>
      <link>https://arxiv.org/abs/2512.23883</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2512.23883</guid>
      <pubDate>Mon, 14 Sep 2026 04:00:00 GMT</pubDate>
      <description>arXiv: The commensurate charge-density-wave phase of the prototypical transition metal dichalcogenide 1T-TaS₂ is investigated by temperature- and polarization-dependent infrared spectroscopy, revealing distinct charge dynamics parallel and perpendicular to the layers. Supported by density-functional-theory calculations, we…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Discovery of Superconductivity in a Bulk Moire Superlattice Material</title>
      <link>https://arxiv.org/abs/2609.06622v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2609.06622v1</guid>
      <pubDate>Sun, 06 Sep 2026 14:14:51 GMT</pubDate>
      <description>arXiv: Moire materials provide a versatile platform realizing emergent electronic states arising from enhanced correlation due to flat bands. A variety of phenomena including superconductivity, low dimensional ferromagnetism, Mott insulating phase, topological phenomena have been reported in such systems. To date, moire…</description>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Purely Electric-Field Control of Topological Magnetism in Two-Dimensional Magnets</title>
      <link>https://arxiv.org/abs/2609.06215v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2609.06215v1</guid>
      <pubDate>Sat, 05 Sep 2026 18:21:49 GMT</pubDate>
      <description>arXiv: Electrical control of topological magnetism is central to realizing energy-efficient topological spintronics. Yet most electric-field approaches modify the competing magnetic interactions through a nonselective rearrangement of low-energy electronic states, yielding coarse magnetic phase control that often requires…</description>
      <category>Theory</category>
      <category>Cr₂Ge₂Te₆</category>
      <category>Graphene</category>
      <category>TaS₂, TaSe₂</category>
      <category>CrI₃, VI₃, TiCl₃</category>
    </item>
    <item>
      <title>Scientists discover two superconducting states hiding as one</title>
      <link>https://www.sciencedaily.com/releases/2026/08/260828005222.htm</link>
      <guid isPermaLink="true">https://www.sciencedaily.com/releases/2026/08/260828005222.htm</guid>
      <pubDate>Mon, 31 Aug 2026 13:29:42 GMT</pubDate>
      <description>ScienceDaily: Scientists have uncovered hidden complexity inside two ultrathin superconductors that seemed much simpler than they really are. Niobium diselenide and tantalum disulfide appeared to have a single superconducting state, but highly sensitive measurements revealed that each actually contains two strongly interacting…</description>
      <category>Everyone</category>
      <category>NbSe₂, NbS₂, NbTe₂</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Strongly Enhanced Charge-Density Waves and Correlated Insulating State in Atomically Thin 1T-TaS₂</title>
      <link>https://arxiv.org/abs/2608.05532v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2608.05532v1</guid>
      <pubDate>Thu, 06 Aug 2026 02:23:08 GMT</pubDate>
      <description>arXiv: We investigate thickness-dependent charge-density-wave (CDW) transitions in 1T-TaS₂ using temperature-dependent Raman spectroscopy and electrical transport. Raman measurements show that the incommensurate, nearly commensurate, and commensurate CDW phases persist down to the monolayer limit. As the thickness is reduced…</description>
      <category>Theory</category>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Emergence of Chiral Helimagnetic Order in Chromium-intercalated Tantalum Disulfide CrTa₃S₆ Powders with Controlled Intercalation</title>
      <link>https://arxiv.org/abs/2608.03953v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2608.03953v1</guid>
      <pubDate>Tue, 04 Aug 2026 17:19:37 GMT</pubDate>
      <description>arXiv: We report a highly sensitive change in magnetic properties of a chiral Cr-intercalated transition-metal dichalcogenide CrₓTa₃S₆. Magnetization curves and small-angle neutron scattering data revealed that the powder samples exhibit chiral helimagnetism with a Cr intercalation quantity x below 0.996, while they show…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Interaction-driven electronic ferroelectricity in van der Waals heterostructures</title>
      <link>https://arxiv.org/abs/2607.24087v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2607.24087v1</guid>
      <pubDate>Mon, 27 Jul 2026 07:28:07 GMT</pubDate>
      <description>arXiv: Strong electronic correlations in narrow-band systems provide a promising route to realize emergent quantum phases. While ferroelectricity in van der Waals materials is typically associated with inversion symmetry breaking driven by lattice distortions, interlayer sliding, or moiré reconstruction, the possibility of…</description>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Charge-Density-Wave Phase Transitions in Monolayer 1T-TaS2 from Universal Machine Learning Molecular Dynamics</title>
      <link>https://arxiv.org/abs/2607.22316v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2607.22316v1</guid>
      <pubDate>Fri, 24 Jul 2026 13:57:09 GMT</pubDate>
      <description>arXiv: Charge-density-wave (CDW) phases in 1T transition-metal dichalcogenides arise from strong electron-phonon coupling and accompanying lattice instabilities. Capturing their temperature-dependent structural evolution using conventional first-principles molecular dynamics (MD) remains challenging because of the large…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Termination-Dependent Surface States and Magnetic Fingerprints of Chiral Helimagnet Cr1/3TaS2</title>
      <link>https://arxiv.org/abs/2605.24415v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.24415v1</guid>
      <pubDate>Sat, 23 May 2026 05:58:09 GMT</pubDate>
      <description>arXiv: Chiral helimagnets based on intercalated transition-metal dichalcogenides, characterized by nano-scale spin ordering, provide a powerful route to engineer chiral spin textures (e.g. the topologically protected magnetic solitons) and emergent electronic functionality at reduced dimensions, where surface and interface…</description>
      <category>Theory</category>
      <category>Experiment</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Revealing Charge Transfer in Defect-Engineered 4Hb-TaS₂</title>
      <link>https://arxiv.org/abs/2603.24486v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.24486v1</guid>
      <pubDate>Wed, 25 Mar 2026 16:28:32 GMT</pubDate>
      <description>arXiv: We present a comprehensive first-principles investigation of defects in 4Hb-TaS₂. In this layered transition metal dichalcogenide, charge transfer between alternating Mott-insulating 1T and metallic 1H layers gives rise to exotic quantum phases such as the Kondo effect and topological superconductivity. Motivated by…</description>
      <category>Theory</category>
      <category>TaS₂, TaSe₂</category>
    </item>
    <item>
      <title>Enhanced Superconductivity and Vortex Dynamics in One-Dimensional TaS2 Nanowires</title>
      <link>https://arxiv.org/abs/2507.15792v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2507.15792v1</guid>
      <pubDate>Mon, 21 Jul 2025 16:50:35 GMT</pubDate>
      <description>arXiv: We report the synthesis of high-quality 2H-TaS2 nanowires via a controlled two-step conversion process from TaS3 precursors, achieving robust superconductivity with a transition temperature Tc ~ 3.6 K which is significantly higher than bulk 2H-TaS2 (Tc ~ 0.8 K). Structural and compositional analyses confirm phase…</description>
      <category>Experiment</category>
      <category>TiS₃, ZrTe₃, NbSe₃, TaSe₃</category>
      <category>TaS₂, TaSe₂</category>
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