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2020 | OriginalPaper | Chapter

12. Superconductivity in the Two-Dimensional Electron Gas at Transition Metal Oxide Interfaces

Author : J. C. Nie

Published in: Superconductivity

Publisher: Springer International Publishing

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Abstract

The transition metal oxide interface has attracted extensive attention due to its unique, strong correlation properties. In particular, LaAlO3/SrTiO3(LAO/STO) interface has a high mobility of two-dimensional electron gas (2DEG) and specific physical phenomena such as superconductivity, ferromagnetism, and the coexistence of superconductivity and ferromagnetism are observed. Other transition metal oxide interface systems also show high mobility and similar novel quantum phenomena. Superconducting 2DEG at the LAO/STO interface offers an appealing platform for quantum phase transition from a superconductor to a weakly localized metal. Although the research on the transition metal oxide interface is extensive, there are still many outstanding unsolved issues, such as the origin of 2DEG, the superconducting pairing mechanism of 2DEG, the origin of ferromagnetism, and the coexistence of superconductivity and ferromagnetism. Considering these aspects, the 2DEG of the transition metal oxide interface is of high interest for basic research and potential applications. This chapter presents a brief state-of-the-art view of the research results on superconductivity in 2DEG based on literature and our findings.

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Metadata
Title
Superconductivity in the Two-Dimensional Electron Gas at Transition Metal Oxide Interfaces
Author
J. C. Nie
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-23303-7_12

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