期刊
PHYSICAL REVIEW B
卷 87, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.024509
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资金
- National Science Foundation [NSF/DMR-0854752, NSF/DMR-1209678]
- MRSEC program
- Ramon y Cajal Program
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1209578] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0854752] Funding Source: National Science Foundation
Using an electronic double layer transistor we have systematically studied the superconductor-to-insulator transition in La2CuO4+delta thin films grown by ozone-assisted molecular-beam epitaxy. We have confirmed the high crystalline quality of the cuprate films and have demonstrated the suitability of the electronic double layer technique to continuously vary the charge density in a system that is otherwise characterized by the presence of miscibility gaps. The transport and magnetotransport results highlight the role of electron-electron interactions in the mechanism of the transition due to the proximity of the Mott-insulating state.
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