Attaching thiolated superconductor grains on gold surfaces for nanoelectronics applications

Luis De Los Santos Valladares; Angel Bustamante Dominguez; Justin Llandro; Seiichi Suzuki; Thanos Mitrelias; Richard Bellido Quispe; Crispin H.W. Barnes; Yutaka Majima

doi:10.1143/JJAP.49.093102

Attaching thiolated superconductor grains on gold surfaces for nanoelectronics applications

Luis De Los Santos Valladares, Angel Bustamante Dominguez, Justin Llandro, Seiichi Suzuki, Thanos Mitrelias, Richard Bellido Quispe, Crispin H.W. Barnes, Yutaka Majima

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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-C ₈H₁₆-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_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.

Original language	English
Article number	093102
Journal	Japanese journal of applied physics
Volume	49
Issue number	9 PART 1
DOIs	https://doi.org/10.1143/JJAP.49.093102
Publication status	Published - 2010 Sep
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Attaching thiolated superconductor grains on gold surfaces for nanoelectronics applications. / De Los Santos Valladares, Luis; Dominguez, Angel Bustamante; Llandro, Justin; Suzuki, Seiichi; Mitrelias, Thanos; Quispe, Richard Bellido; Barnes, Crispin H.W.; Majima, Yutaka.

In: Japanese journal of applied physics, Vol. 49, No. 9 PART 1, 093102, 09.2010.

Research output: Contribution to journal › Article › peer-review

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abstract = "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-C 8H16-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 (TC = 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.",

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AU - De Los Santos Valladares, Luis

AU - Dominguez, Angel Bustamante

AU - Llandro, Justin

AU - Suzuki, Seiichi

AU - Mitrelias, Thanos

AU - Quispe, Richard Bellido

AU - Barnes, Crispin H.W.

AU - Majima, Yutaka

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