Pan Z., Huang X., Fan Y. et al. · Nature Communications · 2024 · 9342
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
High-quality Cu3BHT single crystals enabled the first atomic-resolution structure analysis of Cu3BHT, establishing a monoclinic non-van der Waals quasi-2D kagome structure.
Caveat: Local CIF was not supplied; reported crystallographic values were extracted from article/SI text.
2 · Single crystal structure characterization of Cu3BHT · Figure 1 · Linked to 3 structured results
Interlayer Cu-S covalent bonds are proposed to enhance out-of-plane charge transport by shortening transport distances and stabilising the stacking structure.
Caveat: Causal link is supported by structure plus transport and DFT interpretation, but direct bond-specific transport isolation is not shown.
4 · Single crystal device characterization · Figures 1c and 2c · Linked to 4 structured results
DFT/DFPT calculations attribute Cu3BHT superconductivity to enhanced electron-electron interactions and electron-phonon coupling associated with the kagome structure and interlayer Cu-S bonds.
Caveat: The EPC lambda value is visually estimated here; the paper's mechanism is interpretive and based on calculations plus experimental transport.
6 · Band structure calculation · Figure 4 · Linked to 4 structured results
Higher interfacial reaction temperature improves crystallinity, while copper concentration and longer reaction time mainly increase crystal size; CuCl2 is the most effective copper source among those compared.
Caveat: Optimisation trends are primarily qualitative in the SI captions/text; exact numerical crystal-size series are not tabulated.
3 · Suppl. Note 3 · Supplementary Figs. 3-4
Single-crystal Cu3BHT exhibits intrinsic metallic out-of-plane transport from 2 to 300 K with high RRR and Ohmic contacts.
Caveat: Absolute conductivity relies on estimated crystal cross-section; authors use normalised resistivity for device-to-device comparison.
4 · Single crystal device characterization · Figure 2 · Linked to 4 structured results
The authors interpret the linear resistivity between 20 and 100 K and Curie-law magnetic susceptibility as evidence supporting non-Fermi-liquid behaviour in Cu3BHT.
Caveat: The paper reports transport and susceptibility signatures rather than a complete many-body analysis.
4 · Single crystal device characterization · Figures 2d and 3c · Linked to 3 structured results
Cu3BHT single-crystal devices show a superconducting transition at 0.25 K; the coherence length is smaller than the sample diameter, supporting bulk superconductivity.
Caveat: Transition temperatures vary slightly among devices, attributed by authors to crystal and device quality.
5 · Superconductivity characterization and magnetic properties · Figure 3d-f · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3BHTBrowse family: Cu₃(C₆S₆) / Cu–BHT | Cu3BHTCopper ions in mixed Cu+ and Cu2+ valence; square-planar and square-pyramidal coordination environments · Benzenehexathiolate (BHT) | 2D · PristineQuasi-2D kagome coordination polymer with monoclinic P21/c ABAB double-layer stacking, in-plane pi-d conjugation, and non-van der Waals interlayer Cu-S covalent bonds. | 1 · Abstract |
| Cu3BHT DFT modelBrowse family: Cu₃(C₆S₆) / Cu–BHT | Cu3BHTCopper sites from the experimentally solved structure · Benzenehexathiolate (BHT) | 2D · Model SystemAtomic-precise Cu3BHT crystal structure used for DFT, DFPT phonon, EPC, and band-unfolding calculations. | 5 · Band structure calculation · Figure 4 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu3BHT atomic-structure computational modelresearch_0113__mat__mat_cu3bht_model | Model · Model System · Model | DFT/DFPT model built from the refined experimental Cu3BHT crystal structure. | 7 · Methods |
| Cu3BHT micro-crystal array / multicrystalline filmresearch_0113__mat__mat_cu3bht | Thin Film · Target Sample · Pristine Framework | Liquid-liquid interfacial self-assembly product; densely packed microcrystals in a Cu3BHT film, washed and vacuum dried. | 2 · Synthesis of Cu3BHT micro-crystal array · Figure 1d |
| Pulverised Cu3BHT powder for Micro-EDresearch_0113__mat__mat_cu3bht | Powder · Target Sample · Pristine Framework | Finely pulverised Cu3BHT powder dispersed in ethanol, ultrasonicated, and placed on a TEM grid.Holey carbon film on copper TEM grid | 7 · Micro-ED data collection and procession of Cu3BHT |
| Isolated Cu3BHT single crystalsresearch_0113__mat__mat_cu3bht | Single Crystal · Target Sample · Pristine Framework | Phase-pure single crystals obtained by ultrasonication of the Cu3BHT microcrystal array/film. | 2 · Synthesis of Cu3BHT micro-crystal array |
| Cu3BHT single-crystal four-probe deviceresearch_0113__mat__mat_cu3bht | Electrode · Target Sample · Pristine Framework | Single Cu3BHT crystal on Si/SiO2, patterned by EBL and contacted with Ti/Au electrodes for out-of-plane transport.Si/SiO2 substrate with Ti/Au electrodes · 5 nm Ti / 250 nm Au electrodes; sample diameter approximately 200 nm | 3 · Single crystal device characterization · Figure 2a |