Kansai Photon Science Institute >> KPSI Seminar >> Morphological Superconductors: Fundamental discoveries in Superconducting Materials.
Seminar
The 59th KPSI Seminar
Morphological Superconductors: Fundamental discoveries in Superconducting Materials.
| Presentor | William Rieken (Ph.D. Candidate) （Surface and Materials Science Laboratory, Nara Institute of Science and Technology） |
|---|---|
| Place | ITBL G201 room（KPSI） |
| Date | 14:15-（THU）May. 23, 2019 |
| abstract | [PDFfile／145KB] |
Morphological Superconductors: Fundamental discoveries in Superconducting Materials.
William Rieken (Ph.D. Candidate)
（Surface and Materials Science Laboratory, Nara Institute of Science and Technology）
abstract
Current applied research for the first known fabrication of morphological high temperature superconductors of YBa2Cu3Ox (YBCO) and applications — in the form of morphologies of rods, tubes, wafers and spirals presented.
A significant finding is that the novel morphological HTSC materials are superconducting without the need for further sintering or oxygenation, providing an avenue for the application of YBa2Cu3Ox to substrates at room temperatures or direct use in the form of powder.
A discovery of morphological structures is presented using the following measurement instruments. Transmission electron microscope (TEM) and scanning electron microscope (SEM) images reveal the tubular morphology of the structures. Application of X-ray diffraction showed that the powder consisted of nanorods and nanotubes predominantly of the YBa2Cu3Ox phase. A critical superconducting transition temperature Tc of 92 K in a critical magnetic field of 10 Oe, along with observing the Meissner effect.
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