<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>Flatland: news on NbOI₂, CrOCl, TiOCl</title>
    <link>https://flatland-pi.vercel.app/materials/oxyhalide.html</link>
    <description>The newest items tagged NbOI₂, CrOCl, TiOCl in the Flatland news feed.</description>
    <language>en</language>
    <atom:link href="https://flatland-pi.vercel.app/feed/oxyhalide.xml" rel="self" type="application/rss+xml"/>
    <lastBuildDate>Mon, 05 Oct 2026 08:10:53 GMT</lastBuildDate>
    <item>
      <title>Tensor-Engineered Van der Waals NbOCl2 Resonant Metasurface for Polarization-entangled Bell State Generation</title>
      <link>https://arxiv.org/abs/2609.34095v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2609.34095v1</guid>
      <pubDate>Mon, 28 Sep 2026 01:36:17 GMT</pubDate>
      <description>arXiv: Polarization-entangled photon pairs are essential resources for quantum information technologies, yet realizing compact sources with intrinsically controllable entanglement remains challenging. Van der Waals (vdW) nonlinear materials such as NbOCl2 provide atomically thin platforms for quantum light generation, yet…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Hilbert-space selected switch of helical edges in an artificial quantum Hall insulator</title>
      <link>https://arxiv.org/abs/2609.11732v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2609.11732v1</guid>
      <pubDate>Thu, 10 Sep 2026 15:47:16 GMT</pubDate>
      <description>arXiv: Quantum Hall effects (QHE) host one-dimensional topologically-protected edge channels, which can serve as an essential ingredient in exotic quantum electronic systems. Yet the manual reconstruction of Landau-level topology, by electrostatic confinement or symmetry breaking, remains experimentally challenging. Here, we…</description>
      <category>Theory</category>
      <category>Experiment</category>
      <category>Twisted graphene</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
      <category>Graphene</category>
    </item>
    <item>
      <title>A substrate booster for P-type 2D ferromagnetic semiconductor</title>
      <link>https://arxiv.org/abs/2609.11015v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2609.11015v1</guid>
      <pubDate>Thu, 10 Sep 2026 02:48:53 GMT</pubDate>
      <description>arXiv: Spin transistors with its both charge and spin properties tuned via electrostatic gating are believed capable for widespread use, which however have proven challenging due to the extreme rareness of their physical base -- magnetic semiconductors. The latter are limited within very few systems including diluted magnetic…</description>
      <category>Engineering</category>
      <category>Experiment</category>
      <category>Theory</category>
      <category>Cr₂Ge₂Te₆</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Correlated Insulating States in Twisted Double Bilayer Graphene Enhanced by Interfacial Effect on CrOCl</title>
      <link>https://arxiv.org/abs/2607.06492v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2607.06492v1</guid>
      <pubDate>Tue, 07 Jul 2026 16:52:55 GMT</pubDate>
      <description>arXiv: Interaction between different two dimensional materials can give rise to many exotic physical phenomena which are rarely observed in intrinsic materials. Recently, several theoretical and experimental works have revealed that magnetic proximity effect between pristine graphene and magnetic substrates can lead to the…</description>
      <category>Experiment</category>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
      <category>Graphene</category>
    </item>
    <item>
      <title>Giant optical spin-orbit interactions in ferroelectric van der Waals waveguides</title>
      <link>https://arxiv.org/abs/2605.13707v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.13707v1</guid>
      <pubDate>Wed, 13 May 2026 15:56:02 GMT</pubDate>
      <description>arXiv: Optical spin-orbit interactions (SOI) link photonic spin to momentum, offering a route toward on-chip polarization control and beam steering. Nevertheless, achieving sufficient optical SOI and nonlinearities on sub-micrometer scales - a prerequisite for dense photonic integration - remains an outstanding challenge.…</description>
      <category>Theory</category>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>On-demand steering of hyperbolic chiral polaritons</title>
      <link>https://arxiv.org/abs/2605.12686v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.12686v1</guid>
      <pubDate>Tue, 12 May 2026 19:34:55 GMT</pubDate>
      <description>arXiv: Control of light polarization and propagation in sub-wavelength architectures is foundational to nanophotonic technologies. A frontier direction is to leverage strong optical spin-orbit interactions to realize polarization-selective light steering, known as the photonic spin Hall effect. In this context, hyperbolic…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>A comparative first-principles investigation of bilayer NbOX2 (X=Cl, Br, I) for Photocatalytic water splitting applications</title>
      <link>https://arxiv.org/abs/2605.17616v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.17616v1</guid>
      <pubDate>Tue, 12 May 2026 03:03:21 GMT</pubDate>
      <description>arXiv: Motivated by our previous work on bulk NbOX2 , where we have reported its high 1dielectric polarisation and finite piezoelectric response, this work extends to its 2D homo bilayer system to explore its potential for photocatalytic water splitting. Herein, density functional theory (DFT) were employed in probing the…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
      <category>PtSe₂, PdSe₂, ditellurides</category>
      <category>BiOCl, BiOBr, BiOI</category>
    </item>
    <item>
      <title>Composition-Driven Tunable Optical and Electrical Properties in Van der Waals Ferroelectric NbOI2-xClx Alloys</title>
      <link>https://arxiv.org/abs/2605.01285v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2605.01285v1</guid>
      <pubDate>Sat, 02 May 2026 06:41:52 GMT</pubDate>
      <description>arXiv: Layered niobium oxide dihalides NbOX2 (X = I, Cl), as a new family of Van der Waals (vdW) ferroelectrics, have attracted extensive attention, while achieving non-volatile modulation of their optical and electrical properties remains challenging, thereby limiting their integration into next-generation nanoelectronics…</description>
      <category>Experiment</category>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Deep-Subwavelength and Broadband Quarter-Wave Retardation in Ultrathin Hyperbolic MoOCl2</title>
      <link>https://arxiv.org/abs/2604.05236v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2604.05236v1</guid>
      <pubDate>Mon, 06 Apr 2026 23:00:39 GMT</pubDate>
      <description>arXiv: The miniaturization of polarization-controlling optical components is one of the central pursuits in nanophotonics. While traditional anisotropic materials require large propagation lengths to achieve the desired phase shifts, metasurfaces mitigate this size constraint but often introduce narrow operational bandwidths…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>In-Line Fiber-Integrated Photon-Pair Generation from van der Waals Crystals</title>
      <link>https://arxiv.org/abs/2603.24070v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.24070v1</guid>
      <pubDate>Wed, 25 Mar 2026 08:24:49 GMT</pubDate>
      <description>arXiv: Miniaturized quantum light sources that operate directly in optical fibers are an attractive platform for optical quantum technologies. However, most miniaturized spontaneous parametric down- conversion (SPDC) sources still rely on objective-lens-based free-space pumping and collection, which limits compactness…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Electrically switchable ferron upconversion in a van der Waals ferroelectric</title>
      <link>https://arxiv.org/abs/2603.19394v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.19394v1</guid>
      <pubDate>Thu, 19 Mar 2026 18:32:24 GMT</pubDate>
      <description>arXiv: Nonlinear phononics provides a powerful ultrafast route to control lattice excitations, enabling access to hidden quantum orders, phononic computing, and quantum transduction. However, dynamic control of anharmonic phonon interactions remains limited, as these interactions are typically fixed by the equilibrium crystal…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Magnetic-field-induced magnon portfolio in a van der Waals magnet</title>
      <link>https://arxiv.org/abs/2603.12865v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.12865v1</guid>
      <pubDate>Fri, 13 Mar 2026 10:12:11 GMT</pubDate>
      <description>arXiv: Magnonic excitations are investigated in chromium oxychloride (CrOCl), a van der Waal (vdW) antiferromagnet prone to a multitude of magnetic phase transitions, with absorption experiments in a broad continuous energy range. At low magnetic fields, the magnon spectra show a strong bi-axial anisotropy and inform on the…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Magnetic field tuning of modulated magnetic orders in CrOCl at the two-dimensional limit</title>
      <link>https://arxiv.org/abs/2603.09836v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.09836v1</guid>
      <pubDate>Tue, 10 Mar 2026 15:58:32 GMT</pubDate>
      <description>arXiv: Chromium oxychloride is a van der Waals magnet with intrinsic competing exchange interactions, including a strong antiferromagnetic one, source of a very rich magnetic phase diagram, with ferrimagnetic, antiferromagnetic, and canted states, up to high magnetic fields. We investigate the sequence of these magnetic…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Air-stable bright entangled photon-pair source from graphene-encapsulated van der Waals ferroelectric NbOI2</title>
      <link>https://arxiv.org/abs/2603.04082v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2603.04082v1</guid>
      <pubDate>Wed, 04 Mar 2026 13:54:00 GMT</pubDate>
      <description>arXiv: Van der Waals (vdW) ferroelectrics are emerging nonlinear photonic materials that combine large second-order susceptibility \c{hi}(2) with heterostructure compatibility, offering an attractive route toward miniaturized spontaneous parametric down-conversion (SPDC) sources. However, vdW SPDC sources operating under…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
      <category>Graphene</category>
    </item>
    <item>
      <title>Visualizing Nanoscopic Acoustic Mode Competition in van der Waals Ferroelectric</title>
      <link>https://arxiv.org/abs/2602.11504v2</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2602.11504v2</guid>
      <pubDate>Thu, 12 Feb 2026 02:58:19 GMT</pubDate>
      <description>arXiv: Understanding how low-dimensional ferroelectrics respond to ultrafast excitation at nanoscales is essential for controlling energy flow and mechanical functionality in next-generation polar devices, yet the nanoscopic structural response to ultrafast depolarization remains unresolved, obscuring the microscopic pathways…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Anisotropic electron gas in a hyperbolic van der Waals material</title>
      <link>https://arxiv.org/abs/2602.01072v2</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2602.01072v2</guid>
      <pubDate>Sun, 01 Feb 2026 07:33:54 GMT</pubDate>
      <description>arXiv: Electron gases in low dimensional materials exhibit unconventional transport and optical phenomena due to reduced phase space, enhanced interactions, and strong sensitivity to lattice symmetry. While commonly realized in quantum confined systems and engineered heterostructures, such states are rare in naturally…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Stabilizing van der Waals NbOI2 by SiO2 encapsulation for Photonic Applications</title>
      <link>https://arxiv.org/abs/2601.12470v1</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2601.12470v1</guid>
      <pubDate>Sun, 18 Jan 2026 16:18:42 GMT</pubDate>
      <description>arXiv: Niobium oxide diiodide (NbOI2) is an emerging material for photonics and electronics, distinguished by its exceptional second-order nonlinearity and pronounced in-plane ferroelectricity, both originating from its highly anisotropic ABC-stacked crystal structure. Its broken inversion symmetry enables its optical…</description>
      <category>Experiment</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
    </item>
    <item>
      <title>Giant exciton binding energy in bulk CrCl3</title>
      <link>https://arxiv.org/abs/2505.00920v2</link>
      <guid isPermaLink="true">https://arxiv.org/abs/2505.00920v2</guid>
      <pubDate>Thu, 01 May 2025 23:37:31 GMT</pubDate>
      <description>arXiv: Van der Waals (vdW) materials, with their unique combination of electronic, optical, and magnetic properties, are emerging as promising platforms for exploring excitonic phenomena. Thus far, the choice of materials with exceptional excitonic response has been limited to two-dimensional (2D) configurations of vdW…</description>
      <category>Theory</category>
      <category>NbOI₂, CrOCl, TiOCl</category>
      <category>CrI₃, VI₃, TiCl₃</category>
    </item>
  </channel>
</rss>
