Pith Number

pith:43F7IIAC

pith:2025:43F7IIACWWW4ADD5CTD5XU6LVL

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Pressure-Tunable Generalized Wigner Crystal and Fractional Chern Insulator in twisted MoTe$_2$

Bingbing Wang, Cheng-Cheng Liu, Junxi Yu

Pressure tunes the flatness and quantum geometry of bands in twisted MoTe2 to switch between fractional Chern insulator and generalized Wigner crystal states.

arxiv:2504.11177 v2 · 2025-04-15 · cond-mat.mes-hall · cond-mat.str-el

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Claims

C1strongest claim

Pressure can efficiently tune the flatness and quantum geometry of the single-particle bands in twisted bilayer MoTe2. By fractionally filling the topmost valence band, pressure modulates the fractional Chern insulator and generalized Wigner crystal and controls their many-body topological phase transitions, with a remarkable correspondence between single-particle band geometry and formation of FCI and GWC.

C2weakest assumption

The single-particle band-structure calculations under pressure (including any assumed lattice relaxation or dielectric screening) are sufficient to determine the stability and transitions of the interacting many-body states without requiring full interacting many-body numerics or additional experimental calibration.

C3one line summary

Pressure tunes band flatness and geometry in tMoTe2 to control FCI and GWC phases and their topological transitions at fractional fillings.

References

68 extracted · 68 resolved · 0 Pith anchors

[1] As the pressure increases, the positions of degenerate states for the 24-site cluster remain unchanged

[2] E. Y. Andrei and A. H. MacDonald, Graphene bilayers with a twist, Nat. Mater. 19, 1265 (2020) 2020

[3] L. Balents, C. R. Dean, D. K. Efetov, and A. F. Young, Superconductivity and strong correlations in moir´ e flat bands, Nat. Phys. 16, 725 (2020) 2020

[4] Y. Cao, V. Fatemi, A. Demir, S. Fang, S. L. Tomarken, J. Y. Luo, J. D. Sanchez-Yamagishi, K. Watanabe, T. Taniguchi, E. Kaxiras, R. C. Ashoori, and P. Jarillo- Herrero, Correlated insulator behaviour 2018

[5] Y. Cao, V. Fatemi, S. Fang, K. Watanabe, T. Taniguchi, E. Kaxiras, and P. Jarillo-Herrero, Unconventional super- conductivity in magic-angle graphene superlattices, Na- ture 556, 43 (2018) 2018

Formal links

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Cited by

1 paper in Pith

Various electronic crystal phases in rhombohedral graphene multilayers

Receipt and verification

First computed	2026-06-02T01:03:31.228883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6cbf42002b5adc00c7d14c7dbd3cbaac1fb4b4b361e704062b42ffaba64ea4a

Aliases

arxiv: 2504.11177 · arxiv_version: 2504.11177v2 · doi: 10.48550/arxiv.2504.11177 · pith_short_12: 43F7IIACWWW4 · pith_short_16: 43F7IIACWWW4ADD5 · pith_short_8: 43F7IIAC

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/43F7IIACWWW4ADD5CTD5XU6LVL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e6cbf42002b5adc00c7d14c7dbd3cbaac1fb4b4b361e704062b42ffaba64ea4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509e927cb2adc0d4e61288c46226e40f4c6f68c0a05329e0031b8b31e2df5697",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2025-04-15T13:32:42Z",
    "title_canon_sha256": "958285edf0484519990181f2e9162207aaabbe9bee72c76063a978f30a178089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.11177",
    "kind": "arxiv",
    "version": 2
  }
}