@article{367e082ef30e44209dd84a2926b07289,
title = "Phase transition and anomalous scaling in the quantum Hall transport of topological-insulator Sn- B i1.1 S b0.9 T e2 S devices",
abstract = "The scaling physics of quantum Hall transport in optimized topological insulators with a plateau precision of ∼1/1000e2/h is considered. Two exponential scaling regimes are observed in temperature-dependent transport dissipation, one of which accords with thermal-activation behavior with a gap of 2.8 meV (>20 K), the other being attributed to variable-range hopping (1-20 K). Magnetic-field-driven plateau-to-plateau transition gives scaling relations of (dRxy/dB)maxT-κ and ΔB-1T-κ with a consistent exponent of κ ∼ 0.2, which is half the universal value for a conventional two-dimensional electron gas. This is evidence of percolation assisted by quantum tunneling and reveals the dominance of electron-electron interaction of the topological surface states.",
author = "Faji Xie and Shuai Zhang and Qianqian Liu and Chuanying Xi and Kang, {Ting Ting} and Rui Wang and Boyuan Wei and Pan, {Xing Chen} and Minhao Zhang and Fucong Fei and Xuefeng Wang and Li Pi and Yu, {Geliang L.} and Baigeng Wang and Fengqi Song",
note = "Funding Information: This work was supported by the National Key R&D Program of China (Grant No. 2017YFA0303200), the National Natural Science Foundation of China (Grants No. U1732273, No. U1732159, No. 91622115, No. 11522432, and No. 11574217), the Natural Science Foundation of Jiangsu Province (Grant No. BK20160659), and the Fundamental Research Funds for the Central Universities. We also acknowledge the assistance of the Nanofabrication and Characterization Center at the Physics College of Nanjing University. We would like to thank Prof. T. Sedrakyan from the University of Massachusetts Amherst, Prof. H. Lu from the Southern University of Science and Technology of China, and Prof. J. Wang from Fudan University for some very stimulating discussions. Funding Information: This work was supported by the National Key R&D Program of China (Grant No. 2017YFA0303200), the National Natural Science Foundation of China (Grants No. U1732273, No. U1732159, No. 91622115, No. 11522432, and No. 11574217), the Natural Science Foundation of Jiangsu Province (Grant No. BK20160659), and the Fundamental Research Funds for the Central Universities. We also acknowledge the assistance of the Nanofabrication and Characterization Center at the Physics College of Nanjing University. We would like to thank Prof. T. Sedrakyan from the University of Massachusetts Amherst, Prof. H. Lu from the Southern University of Science and Technology of China, and Prof. J. Wang from Fudan University for some very stimulating discussions. Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = feb,
day = "13",
doi = "10.1103/PhysRevB.99.081113",
language = "English",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "8",
}