Attaching Thiolated Superconductor Grains on Gold Surfaces for Nanoelectronics Applications
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概要
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We report that the high critical temperature superconductor (HTCS) LaCaBaCu3O7 in the form of nanograins can be linked to Au(111) surfaces through self assembled monolayers (SAMs) of HS–C8H16–HS [octane (di)thiol]. We show that La1113 particles (100 nm mean diameter) can be functionalized by octane (di)thiol without affecting their superconducting critical temperature ($T_{\text{C}}=80$ K). X-ray photoemission spectroscopy (XPS) analysis reveals that the thiol functional heads link the superconducting grain surfaces creating sulfonates and we deduce that bonding between the S atoms and Cu(1) atoms of the La1113 structure would be formed. We suggest a design for a superconducting transistor fabricated by immobilized La1113 nanograins in between two gold electrodes which could be controlled by an external magnetic field gate.
- 2010-09-25
著者
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Majima Yutaka
Materials And Structures Laboratory Tokyo Institute Of Technology
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De Los
Cavendish Laboratory, University of Cambridge, J. J Thomson Av., Cambridge CB3 0HE, United Kingdom
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Bustamante Dominguez
Laboratorio de Cerámicos y Nano-materiales, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149. Lima, Peru
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Llandro Justin
Cavendish Laboratory, University of Cambridge, J. J Thomson Av., Cambridge CB3 0HE, United Kingdom
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Suzuki Seiichi
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
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Mitrelias Thanos
Cavendish Laboratory, University of Cambridge, J. J Thomson Av., Cambridge CB3 0HE, United Kingdom
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Bellido Quispe
Laboratorio de Cerámicos y Nano-materiales, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149. Lima, Peru
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Barnes Crispin
Cavendish Laboratory, University of Cambridge, J. J Thomson Av., Cambridge CB3 0HE, United Kingdom
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Bellido Quispe
Laboratorio de Cerámicos y Nano-materiales, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149. Lima, Peru
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Bustamante Dominguez
Laboratorio de Cerámicos y Nano-materiales, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149. Lima, Peru
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