| Autor: |
Gaetano Campi, Maria Vittoria Mazziotti, Thomas Jarlborg, Antonio Bianconi |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Condensed Matter, Vol 7, Iss 4, p 56 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2410-3896 |
| DOI: |
10.3390/condmat7040056 |
| Popis: |
Novel nanoscale probes are opening new venues for understanding unconventional electronic and magnetic functionalities driven by multiscale lattice complexity in doped high-temperature superconducting perovskites. In this work, we focus on the multiscale texture at supramolecular level of oxygen interstitial (O-i) atomic stripes in HgBa2CuO4+y at optimal doping for the highest superconducting critical temperature (TC) of 94 K. We report compelling evidence for the nematic phase of oxygen interstitial O-i atomic wires with fractal-like spatial distribution over multiple scales using scanning micro- and nano-X-ray diffraction. The scale-free distribution of O-i atomic wires at optimum doping extending from the micron down to the nanoscale has been associated with the intricate filamentary network of hole-rich metallic wires in the CuO2 plane. The observed critical opalescence provides evidence for the proximity to a critical point that controls the emergence of high-temperature superconductivity at optimum doping. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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