Electrically tunable superconducting dimensionality in stripe-ordered monolayer MoTe2
Abstract
Dimensionality governs the stability of collective quantum states, including whether Cooper pairs can establish the phase coherence required for superconductivity. In solids, however, electronic dimensionality is usually encoded in the crystal structure and is difficult to control reversibly. Here we show evidence that monolayer 1T′-MoTe2 develops a stripe charge-density wave that reorganizes its low-energy electronic states into quasi-one-dimensional channels. Raman spectroscopy and scanning tunneling microscopy identify the stripe order, whereas directional transport and tunneling spectroscopy reveal superconducting correlations confined to the stripe direction and insulating behavior perpendicular to it. Electrostatic doping weakens the transverse insulating response and drives the system into phase-coherent two-dimensional superconductivity. These results show that stripe charge order can reconfigure superconducting dimensionality and make it electrically tunable within a single crystalline layer.
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BibTeX
@misc{qiu2026electrically,
title = {{Electrically tunable superconducting dimensionality in stripe-ordered monolayer MoTe$_2$}},
author = {Tianyu Qiu and Ziyi Han and Fei Yang and Keyu Wei and Liguo Dou and Yong Zhang and Dekun Yang and Kenji Watanabe and Takashi Taniguchi and Xuefeng Wang and Fucong Fei and Fengqi Song and Yanyan Shangguan and Shaochun Li and Jinsheng Wen and Hong Yao and Chaoxing Liu and Binghai Yan and Lin He and Xiaoxiang Xi},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.07302},
eprint = {2611.07302},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.07302},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Electrically tunable superconducting dimensionality in stripe-ordered monolayer MoTe_2
AU - Tianyu Qiu
AU - Ziyi Han
AU - Fei Yang
AU - Keyu Wei
AU - Liguo Dou
AU - Yong Zhang
AU - Dekun Yang
AU - Kenji Watanabe
AU - Takashi Taniguchi
AU - Xuefeng Wang
AU - Fucong Fei
AU - Fengqi Song
AU - Yanyan Shangguan
AU - Shaochun Li
AU - Jinsheng Wen
AU - Hong Yao
AU - Chaoxing Liu
AU - Binghai Yan
AU - Lin He
AU - Xiaoxiang Xi
PY - 2026
DA - 2026/11/05
PB - arXiv
DO - 10.48550/arxiv.2611.07302
UR - https://arxiv.org/abs/2611.07302
AB - Dimensionality governs the stability of collective quantum states, including whether Cooper pairs can establish the phase coherence required for superconductivity. In solids, however, electronic dimensionality is usually encoded in the crystal structure and is difficult to control reversibly. Here we show evidence that monolayer 1T^′-MoTe_2 develops a stripe charge-density wave that reorganizes its low-energy electronic states into quasi-one-dimensional channels. Raman spectroscopy and scanning tunneling microscopy identify the stripe order, whereas directional transport and tunneling spectroscopy reveal superconducting correlations confined to the stripe direction and insulating behavior perpendicular to it. Electrostatic doping weakens the transverse insulating response and drives the system into phase-coherent two-dimensional superconductivity. These results show that stripe charge order can reconfigure superconducting dimensionality and make it electrically tunable within a single crystalline layer.
ER -