Zugriffsnummer 51110
Dokumenttyp Zeitschriftenartikel
Peer Review mit Peer Review
Sprache Englisch
Titel Direct insulator to relativistic quantum Hall transition in graphene
Autor(in); Institution
Yeh, Ching-Chen; National Taiwan University, Department of Physics, Taipei, TAIWAN; National Institute of Standards and Technology (NIST), Physical Measurement Laboratory, Gaithersburg, Md., USA
Patel, Dinesh Kumar; 2.6, Elektrische Quantenmetrologie, PTB-Braunschweig; National Taiwan University, Department of Physics, Taipei, TAIWAN; National Institute of Standards and Technology (NIST), Physical Measurement Laboratory, Gaithersburg, Md., USA
Liao, Pin-Chi; National Taiwan University, Department of Physics, Taipei, TAIWAN
Lin, Wei-Chen; Taiwan International Graduate Program, Academia Sinica, Taipei, TAIWAN; National Tsing Hua University, Department of Engineering and System Science, Hsinchu, TAIWAN
Wang, Siang-Chi; National Taiwan University, Department of Physics, Taipei, TAIWAN
Rigosi, Albert F.; National Institute of Standards and Technology (NIST), Physical Measurement Laboratory, Gaithersburg, Md., USA
Elmquist, Randolph E.; National Institute of Standards and Technology (NIST), Physical Measurement Laboratory, Gaithersburg, Md., USA
Liang, Chi-Te; National Taiwan University, Department of Physics, Taipei, TAIWAN; National Taiwan University, Center for Quantum Science and Engineering, Taipei, TAIWAN; Taiwan Consortium of Emergent Crystalline Materials (TCECM), Taipei, TAIWAN
Quelle/Jahr Physical Review B: 108 (2023), 20, 1 - 7
Artikelnummer 205304
ISSN 2469-9950 (print) ; 2469-9969 (online)
DOI
Verlag Ridge, NY: American Physical Society (APS)
Freie Schlagworte epitaxial graphene ; quantum Hall effect ; weak localization
Zusammenfassung We present evidence of the direct insulator-quantum Hall transition in monolayer epitaxial graphene, a genuine 1 two-dimensional (2D) system. We studied the transition from an insulating state to a quantum Hall state at a high Landau level filling factor ν = 6 > 3 and the plateau-plateau transition from ν = 6 to a ν = 2. Using scaling theory, the critical exponent κ was determined to be 0.41 ± 0.02 for the direct insulator-quantum Hall transition. This closely aligns with κ = 0.42 ± 0.02 from the ν = 6 to ν = 2 quantum Hall plateau-plateau transition. These findings suggest that the two transitions may belong to the same universality class
Themenbereich der Metrologie Elektrizität und Magnetismus
Förderinformationen (1) Förderername: Ministry of Science and Technology (MOST)
Förderer ID: 0000 0004 0369 1054
Förderer ID Typ: ISNI
Förderungsnummer: 110-2112-M-002-029 -MY3
Förderinformationen (2) Förderername: National Science and Technology Council (NSTC)
Förderungsnummer: 111-2627-M-002-001 ; 111-2119-M-002-007 ; 12-2119-M-002-014

Zitierung

Yeh, C.-C., Patel, D. K., Liao, P.-C., Lin, W.-C., Wang, S.-C., Rigosi, A. F., Elmquist, R. E., & Liang, C.-T. (2023). Direct insulator to relativistic quantum Hall transition in graphene. Physical Review B, 108(20), 1–7. https://doi.org/10.1103/PhysRevB.108.205304

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