期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.126803
关键词
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资金
- Swiss National Science Foundation through the National Centre of Competence in Research
- European Union
- European Science Foundation
The quasi-two-dimensional electron gas found at the LaAlO(3)/SrTiO(3) interface offers exciting new functionalities, such as tunable superconductivity, and has been proposed as a new nanoelectronics fabrication platform. Here we lay out a new example of an electronic property arising from the interfacial breaking of inversion symmetry, namely, a large Rashba spin-orbit interaction, whose magnitude can be modulated by the application of an external electric field. By means of magnetotransport experiments we explore the evolution of the spin-orbit coupling across the phase diagram of the system. We uncover a steep rise in Rashba interaction occurring around the doping level where a quantum critical point separates the insulating and superconducting ground states of the system.
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