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Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene

Tutkimustuotosvertaisarvioitu

Standard

Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene. / Julku, A.; Peltonen, T. J.; Liang, L.; Heikkilä, T. T.; Törmä, P.

julkaisussa: Physical Review B, Vuosikerta 101, Nro 6, 060505, 01.02.2020.

Tutkimustuotosvertaisarvioitu

Harvard

Julku, A, Peltonen, TJ, Liang, L, Heikkilä, TT & Törmä, P 2020, 'Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene', Physical Review B, Vuosikerta. 101, Nro 6, 060505. https://doi.org/10.1103/PhysRevB.101.060505

APA

Julku, A., Peltonen, T. J., Liang, L., Heikkilä, T. T., & Törmä, P. (2020). Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene. Physical Review B, 101(6), [060505]. https://doi.org/10.1103/PhysRevB.101.060505

Vancouver

Julku A, Peltonen TJ, Liang L, Heikkilä TT, Törmä P. Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene. Physical Review B. 2020 helmi 1;101(6). 060505. https://doi.org/10.1103/PhysRevB.101.060505

Author

Julku, A. ; Peltonen, T. J. ; Liang, L. ; Heikkilä, T. T. ; Törmä, P. / Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene. Julkaisussa: Physical Review B. 2020 ; Vuosikerta 101, Nro 6.

Bibtex - Lataa

@article{1c4e5143d0d04e61a24833437b59a1a1,
title = "Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene",
abstract = "We study superconductivity of twisted bilayer graphene with local and nonlocal attractive interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) transition temperature for microscopic tight-binding and low-energy continuum models. We predict qualitative differences between local and nonlocal interaction schemes which could be distinguished experimentally. In the flat-band limit where the pair potential exceeds the band width we show that the superfluid weight and BKT temperature are determined by multiband processes and quantum geometry of the band.",
author = "A. Julku and Peltonen, {T. J.} and L. Liang and Heikkil{\"a}, {T. T.} and P. T{\"o}rm{\"a}",
note = "INT=phys,{"}Liang, L.{"}",
year = "2020",
month = "2",
day = "1",
doi = "10.1103/PhysRevB.101.060505",
language = "English",
volume = "101",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "AMER PHYSICAL SOC",
number = "6",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene

AU - Julku, A.

AU - Peltonen, T. J.

AU - Liang, L.

AU - Heikkilä, T. T.

AU - Törmä, P.

N1 - INT=phys,"Liang, L."

PY - 2020/2/1

Y1 - 2020/2/1

N2 - We study superconductivity of twisted bilayer graphene with local and nonlocal attractive interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) transition temperature for microscopic tight-binding and low-energy continuum models. We predict qualitative differences between local and nonlocal interaction schemes which could be distinguished experimentally. In the flat-band limit where the pair potential exceeds the band width we show that the superfluid weight and BKT temperature are determined by multiband processes and quantum geometry of the band.

AB - We study superconductivity of twisted bilayer graphene with local and nonlocal attractive interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) transition temperature for microscopic tight-binding and low-energy continuum models. We predict qualitative differences between local and nonlocal interaction schemes which could be distinguished experimentally. In the flat-band limit where the pair potential exceeds the band width we show that the superfluid weight and BKT temperature are determined by multiband processes and quantum geometry of the band.

U2 - 10.1103/PhysRevB.101.060505

DO - 10.1103/PhysRevB.101.060505

M3 - Article

VL - 101

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

IS - 6

M1 - 060505

ER -