Superconducting Fullerene Nanowhiskers
We synthesized superconducting fullerene nanowhiskers (C<sub>60</sub>NWs) by potassium (K) intercalation. They showed large superconducting volume fractions, as high as 80%. The superconducting transition temperature at 17 K was independent of the K content (x) in the ran...
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-04-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/17/5/4851 |
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| author | Yoshihiko Takano Takahide Yamaguchi Hiroyuki Okazaki Takatsugu Wakahara Toshinori Ozaki Kun’ichi Miyazawa Ryoei Kato Hiroyuki Takeya |
| author_facet | Yoshihiko Takano Takahide Yamaguchi Hiroyuki Okazaki Takatsugu Wakahara Toshinori Ozaki Kun’ichi Miyazawa Ryoei Kato Hiroyuki Takeya |
| author_sort | Yoshihiko Takano |
| collection | DOAJ |
| description | We synthesized superconducting fullerene nanowhiskers (C<sub>60</sub>NWs) by potassium (K) intercalation. They showed large superconducting volume fractions, as high as 80%. The superconducting transition temperature at 17 K was independent of the K content (x) in the range between 1.6 and 6.0 in K-doped C<sub>60</sub> nanowhiskers (K<sub>x</sub>C<sub>60</sub>NWs), while the superconducting volume fractions changed with x. The highest shielding fraction of a full shielding volume was observed in the material of K<sub>3.3</sub>C<sub>60</sub>NW by heating at 200 °C. On the other hand, that of a K-doped fullerene (K-C<sub>60</sub>) crystal was less than 1%. We report the superconducting behaviors of our newly synthesized K<sub>x</sub>C<sub>60</sub>NWs in comparison to those of K<sub>x</sub>C<sub>60</sub> crystals, which show superconductivity at 19 K in K<sub>3</sub>C<sub>60</sub>. The lattice structures are also discussed, based on the x-ray diffraction (XRD) analyses. |
| first_indexed | 2024-12-14T19:21:56Z |
| format | Article |
| id | doaj.art-4c1aba7d27ca4c079e4ba3b888428a42 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-14T19:21:56Z |
| publishDate | 2012-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-4c1aba7d27ca4c079e4ba3b888428a422022-12-21T22:50:19ZengMDPI AGMolecules1420-30492012-04-011754851485910.3390/molecules17054851Superconducting Fullerene NanowhiskersYoshihiko TakanoTakahide YamaguchiHiroyuki OkazakiTakatsugu WakaharaToshinori OzakiKun’ichi MiyazawaRyoei KatoHiroyuki TakeyaWe synthesized superconducting fullerene nanowhiskers (C<sub>60</sub>NWs) by potassium (K) intercalation. They showed large superconducting volume fractions, as high as 80%. The superconducting transition temperature at 17 K was independent of the K content (x) in the range between 1.6 and 6.0 in K-doped C<sub>60</sub> nanowhiskers (K<sub>x</sub>C<sub>60</sub>NWs), while the superconducting volume fractions changed with x. The highest shielding fraction of a full shielding volume was observed in the material of K<sub>3.3</sub>C<sub>60</sub>NW by heating at 200 °C. On the other hand, that of a K-doped fullerene (K-C<sub>60</sub>) crystal was less than 1%. We report the superconducting behaviors of our newly synthesized K<sub>x</sub>C<sub>60</sub>NWs in comparison to those of K<sub>x</sub>C<sub>60</sub> crystals, which show superconductivity at 19 K in K<sub>3</sub>C<sub>60</sub>. The lattice structures are also discussed, based on the x-ray diffraction (XRD) analyses.http://www.mdpi.com/1420-3049/17/5/4851fullerene nanowhiskersuperconductorpotassium intercalation |
| spellingShingle | Yoshihiko Takano Takahide Yamaguchi Hiroyuki Okazaki Takatsugu Wakahara Toshinori Ozaki Kun’ichi Miyazawa Ryoei Kato Hiroyuki Takeya Superconducting Fullerene Nanowhiskers Molecules fullerene nanowhisker superconductor potassium intercalation |
| title | Superconducting Fullerene Nanowhiskers |
| title_full | Superconducting Fullerene Nanowhiskers |
| title_fullStr | Superconducting Fullerene Nanowhiskers |
| title_full_unstemmed | Superconducting Fullerene Nanowhiskers |
| title_short | Superconducting Fullerene Nanowhiskers |
| title_sort | superconducting fullerene nanowhiskers |
| topic | fullerene nanowhisker superconductor potassium intercalation |
| url | http://www.mdpi.com/1420-3049/17/5/4851 |
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