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11 results for “cuprate”
Source Data for "Transport properties and doping evolution of the Fermi surface in cuprates"
<p>Source data for the publication "Transport properties and doping evolution of the Fermi surface in cuprates", in Scientific Reports (https://doi.org/10.1038/s41598-023-39813-z) and on arxiv (https://doi.org/10.48550/arXiv.2303.05254).</p> <p>This dataset is organized in the following way:</p> <p>For every figure of the manuscript there is a separate folder, which includes the figure itself, as well as one or more additional folders for the individual panels. In those, there are one or more .csv files with the data. Some of the .csv files have two header lines, for example when the temperature and <span class="math-tex">\(n_{\mathrm{H}}\)</span> are recorded for multiple doping levels.</p> <p>Additional comments:</p> <ul> <li>Figure 1 <ul> <li>The generic phase boundaries are not included.</li> <li>The precision of values of <span class="math-tex">\(n_{\mathrm{loc}}\)</span>is increased for presentation purposes</li> </ul> </li> <li>experimental doping values are typically rounded to 2 decimal points, doping errors to 3 decimal points</li> <li>estimated <span class="math-tex">\(n_{\mathrm{eff}}\)</span> are rounded to 5 decimal points</li> <li>experimental <span class="math-tex">\(n_{\mathrm{H}}\)</span> from the literature are rounded to 3 decimal points</li> <li>otherwise, if it exists, experimental values are typically rounded to the error</li> <li>temperature is always given in Kelvin</li> <li><span class="math-tex">\(C_2\)</span>is given in <span class="math-tex">\([\mathrm{TK}^{-2}]\)</span> (i.e. Tesla Kelvin^-2)</li> <li>the unit for <span class="math-tex">\(n_{\mathrm{eff}}\)</span>, <span class="math-tex">\(n_{\mathrm{loc}}\)</span>, <span class="math-tex">\(n_{\mathrm{H}}\)</span> is [per CuO2 unit cell]</li> <li>the unit for the resistivity in figure 4 is described in the methods section of the article</li> </ul>
Unravelling the Nature of the Spin Excitations Disentangled from the Charge Contributions in a Doped Cuprate Superconductor
<p>The nature of the spin excitations in superconducting cuprates is a key question toward a unified understanding of the cuprate physics from long-range antiferromagnetism to superconductivity. The intense spin excitations up to the over-doped regime revealed by resonant inelastic X-ray scattering bring new insights as well as problems—like understanding their persistence or their relation to the collective excitations in ordered magnets (magnons). Here, we study the evolution of the spin excitations upon hole-doping the superconducting cuprate Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+δ</sub> by disentangling the spin from the charge excitations in the experimental cross section. We compare our experimental results against density matrix renormalization group calculations for a <em>t-J</em>-like model on a square lattice. Our results unambiguously confirm the persistence of the spin excitations, which are closely connected to the persistence of short-range magnetic correlations up to high doping. This suggests that the spin excitations in hole-doped cuprates are related to magnons—albeit short-ranged.</p>
Characterization of two electronic subsystems in cuprates through optical conductivity
<p>Data sets for original figures in the article titled 'Characterization of two electronic subsystems in cuprates through optical conductivity' published in <a href="https://doi.org/10.1103/PhysRevB.107.144515">Physical Review B <strong>107</strong>, 144515 (2023)</a>. The file name of each xls file corresponds to the figure number in the published article. The files can be opened using the Excel program. If there are sub-figures, or multiple frames in each figure, the data of each sub-figure is stored in separate sheets within one xls file.</p>
Supplementary Dataset for: Enhancement of superexchange due to synergetic breathing and hopping in corner-sharing cuprates
<p>The following data are included in the dataset:</p> <ul> <li>Cluster geometries</li> <li>Point charge embedding files</li> <li>Inputs and output files</li> <li>Orbital files for calculations with large active spaces</li> <li>Data for density difference plots</li> </ul> <p>It is fast to see the contents of the archive with help of <a href="https://github.com/vasi/pixz">pixz</a>:</p> <pre><code class="language-bash">pixz -l data.tar.xz</code></pre> <p>Then the files of interest can be easiliy extracted:</p> <pre><code class="language-bash">pixz -x dir/file < data.tar.xz | tar x </code></pre>
Data Repo for "Momentum-resolved spin-conserving two-triplon bound state and continuum in a cuprate ladder"
<p>Data repo for the paper "Momentum-resolved spin-conserving two-triplon bound state and continuum in a cuprate ladder"</p>
Signature of quantum criticality in cuprates by charge density fluctuations
<p>[This repository contains the raw data for the manuscript "<strong>Signature of quantum criticality in cuprates by charge density fluctuations</strong>" (arXiv:2208.13918)]</p> <p>The universality of the strange metal phase in many quantum materials is often attributed to the presence of a quantum critical point (QCP), a zero-temperature phase transition ruled by quantum fluctuations. In cuprates, where superconductivity hinders direct QCP observation, indirect evidence comes from the identification of fluctuations compatible with the strange metal phase. Here we show that the recently discovered charge density fluctuations (CDF) possess the right properties to be associated to a quantum phase transition. Using resonant x-ray scattering, we studied the CDF in two families of cuprate superconductors across a wide doping range (up to <em>p</em>=0.22). At <em>p</em>*≈0.19, the putative QCP, the CDF intensity peaks, and the characteristic energy Δ is minimum, marking a wedge-shaped region in the phase diagram indicative of a quantum critical behavior, albeit with anomalies. These findings strengthen the role of charge order in explaining strange metal phenomenology and provide insights into high-temperature superconductivity.</p>
Dataset for publication "Fate of charge order in overdoped La-based cuprates"
<p>Dataset providing the sourcedata of the main figures in the publication "Fate of charge order in overdoped La-based cuprates".</p>
Data Repo for "Crossover of high-energy spin fluctuations from collective triplon excitations to incoherent gapped magnetic modes in the cuprate ladders of Sr14-xCaxCu24O41"
<p>Data set for the paper "Crossover of high-energy spin fluctuations from collective triplon excitations to incoherent gapped magnetic modes in the cuprate ladders of Sr14-xCaxCu24O41"</p> <p>Preprint Available at: https://arxiv.org/abs/2201.05027</p> <p> </p>
Quantum spin liquids and the cuprate high temperature superconductors
Open the record for dataset details and reuse information.
Decoding the phases of the cuprates using fractionalization and spinons
Open the record for dataset details and reuse information.
All Data for "Transport properties and doping evolution of the Fermi surface in cuprates"
<p>All data pertaining to the publication "Transport properties and doping evolution of the Fermi surface in cuprates".</p> <p> </p> <p>This includes data analysis software (jupyter notebooks), custom program code, literature data, handwritten notes and the manuscript. This is straight from the hard drive, not particularly well ordered/prepared.</p>
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International Brain Laboratory public data
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OpenNeuro
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