期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.136801
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资金
- Canada Excellence Research Chairs program
- NSERC
- CIFAR
- MDEIE
- FRQNT via INTRIQ
- Canada Foundation for Innovation
- Gordon and Betty Moore Foundation through the EPiQS initiative [GBMF4420]
- National Science Foundation MRSEC Grant [DMR-1420541]
Charge density waves (CDWs) in the second and third Landau levels (LLs) are investigated by both nonlinear electronic transport and noise. The use of a Corbino geometry ensures that only bulk properties are probed, with no contribution from edge states. Sliding transport of CDWs is revealed by narrow band noise in reentrant quantum Hall states R2a and R2c of the second LL, as well as in pinned CDWs of the third LL. Competition between various phases-stripe, pinned CDW, or fractional quantum Hall liquid-in both LLs are clearly revealed by combining noise data with maps of conductivity versus magnetic field and bias voltage.
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