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Evidence for two dimensional anisotropic Luttinger liquids at millikelvin temperatures

Author

Listed:
  • Guo Yu

    (Princeton University
    Princeton University)

  • Pengjie Wang

    (Princeton University)

  • Ayelet J. Uzan-Narovlansky

    (Princeton University)

  • Yanyu Jia

    (Princeton University)

  • Michael Onyszczak

    (Princeton University)

  • Ratnadwip Singha

    (Princeton University)

  • Xin Gui

    (Princeton University)

  • Tiancheng Song

    (Princeton University)

  • Yue Tang

    (Princeton University)

  • Kenji Watanabe

    (National Institute for Materials Science)

  • Takashi Taniguchi

    (National Institute for Materials Science)

  • Robert J. Cava

    (Princeton University)

  • Leslie M. Schoop

    (Princeton University)

  • Sanfeng Wu

    (Princeton University)

Abstract

Interacting electrons in one dimension (1D) are governed by the Luttinger liquid (LL) theory in which excitations are fractionalized. Can a LL-like state emerge in a 2D system as a stable zero-temperature phase? This question is crucial in the study of non-Fermi liquids. A recent experiment identified twisted bilayer tungsten ditelluride (tWTe2) as a 2D host of LL-like physics at a few kelvins. Here we report evidence for a 2D anisotropic LL state down to 50 mK, spontaneously formed in tWTe2 with a twist angle of ~ 3o. While the system is metallic-like and nearly isotropic above 2 K, a dramatically enhanced electronic anisotropy develops in the millikelvin regime. In the anisotropic phase, we observe characteristics of a 2D LL phase including a power-law across-wire conductance and a zero-bias dip in the along-wire differential resistance. Our results represent a step forward in the search for stable LL physics beyond 1D.

Suggested Citation

  • Guo Yu & Pengjie Wang & Ayelet J. Uzan-Narovlansky & Yanyu Jia & Michael Onyszczak & Ratnadwip Singha & Xin Gui & Tiancheng Song & Yue Tang & Kenji Watanabe & Takashi Taniguchi & Robert J. Cava & Lesl, 2023. "Evidence for two dimensional anisotropic Luttinger liquids at millikelvin temperatures," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-42821-2
    DOI: 10.1038/s41467-023-42821-2
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    References listed on IDEAS

    as
    1. Pengjie Wang & Guo Yu & Yanyu Jia & Michael Onyszczak & F. Alexandre Cevallos & Shiming Lei & Sebastian Klemenz & Kenji Watanabe & Takashi Taniguchi & Robert J. Cava & Leslie M. Schoop & Sanfeng Wu, 2021. "Landau quantization and highly mobile fermions in an insulator," Nature, Nature, vol. 589(7841), pages 225-229, January.
    2. Vikram V. Deshpande & Marc Bockrath & Leonid I. Glazman & Amir Yacoby, 2010. "Electron liquids and solids in one dimension," Nature, Nature, vol. 464(7286), pages 209-216, March.
    3. Pengjie Wang & Guo Yu & Yves H. Kwan & Yanyu Jia & Shiming Lei & Sebastian Klemenz & F. Alexandre Cevallos & Ratnadwip Singha & Trithep Devakul & Kenji Watanabe & Takashi Taniguchi & Shivaji L. Sondhi, 2022. "One-dimensional Luttinger liquids in a two-dimensional moiré lattice," Nature, Nature, vol. 605(7908), pages 57-62, May.
    4. Pengjie Wang & Guo Yu & Yanyu Jia & Michael Onyszczak & F. Alexandre Cevallos & Shiming Lei & Sebastian Klemenz & Kenji Watanabe & Takashi Taniguchi & Robert J. Cava & Leslie M. Schoop & Sanfeng Wu, 2021. "Author Correction: Landau quantization and highly mobile fermions in an insulator," Nature, Nature, vol. 591(7850), pages 17-17, March.
    5. Zhen Yao & Henk W. Ch. Postma & Leon Balents & Cees Dekker, 1999. "Carbon nanotube intramolecular junctions," Nature, Nature, vol. 402(6759), pages 273-276, November.
    6. Marc Bockrath & David H. Cobden & Jia Lu & Andrew G. Rinzler & Richard E. Smalley & Leon Balents & Paul L. McEuen, 1999. "Luttinger-liquid behaviour in carbon nanotubes," Nature, Nature, vol. 397(6720), pages 598-601, February.
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