Programming correlated magnetic states with gate-controlled moiré geometry

Anderson, Eric; Fan, Feng-Ren; Cai, Jiaqi; Holtzmann, William; Taniguchi, Takashi; Watanabe, Kenji; Xiao, Di; Yao, Wang; Xu, Xiaodong

doi:10.1126/science.adg4268

Programming correlated magnetic states with gate-controlled moiré geometry

Journal Article · 21 July 2023 · Science

DOI:https://doi.org/10.1126/science.adg4268· OSTI ID:2424572

^[1]; Fan, Feng-Ren ^[2]; ^[1]; Holtzmann, William ^[1]; ^[3]; ^[4]; ^[5]; ^[2]; ^[5]

Department of Physics, University of Washington, Seattle, WA, USA.
Department of Physics, University of Hong Kong, Hong Kong, China.; HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong, Hong Kong, China.
International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.
Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.
Department of Physics, University of Washington, Seattle, WA, USA.; Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA.

The ability to control the underlying lattice geometry of a system may enable transitions between emergent quantum ground states. We report in situ gate switching between honeycomb and triangular lattice geometries of an electron many-body Hamiltonian in rhombohedral (R)–stacked molybdenum ditelluride (MoTe₂) moiré bilayers, resulting in switchable magnetic exchange interactions. At zero electric field, we observed a correlated ferromagnetic insulator near one hole per moiré unit cell with a widely tunable Curie temperature up to 14 K. Applying an electric field switched the system into a half-filled triangular lattice with antiferromagnetic interactions; further doping this layer-polarized superlattice tuned the antiferromagnetic exchange interaction back to ferromagnetic. Our work demonstrates R-stacked MoTe₂moirés to be a laboratory for engineering correlated states with nontrivial topology.

Research Organization:: Univ. of Washington, Seattle, WA (United States)

Sponsoring Organization:: USDOE

OSTI ID:: 2424572

Journal Information:: Science, Journal Name: Science Journal Issue: 6655 Vol. 381; ISSN 0036-8075

Publisher:: AAAS

Country of Publication:: United States

Language:: English

References (42)

Imaging two-dimensional generalized Wigner crystals Li, Hongyuan; Li, Shaowei; Regan, Emma C. Nature, Vol. 597, Issue 7878 https://doi.org/10.1038/s41586-021-03874-9	journal	September 2021
Flat bands in twisted bilayer transition metal dichalcogenides Zhang, Zhiming; Wang, Yimeng; Watanabe, Kenji Nature Physics https://doi.org/10.1038/s41567-020-0958-x	journal	July 2020
Intrinsic quantized anomalous Hall effect in a moiré heterostructure Serlin, M.; Tschirhart, C. L.; Polshyn, H. Science, Vol. 367, Issue 6480 https://doi.org/10.1126/science.aay5533	journal	December 2019
Quantum anomalous Hall effect from intertwined moiré bands Li, Tingxin; Jiang, Shengwei; Shen, Bowen Nature, Vol. 600, Issue 7890 https://doi.org/10.1038/s41586-021-04171-1	journal	December 2021
Stripe phases in WSe2/WS2 moiré superlattices Jin, Chenhao; Tao, Zui; Li, Tingxin Nature Materials https://doi.org/10.1038/s41563-021-00959-8	journal	March 2021
Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene Sharpe, Aaron L.; Fox, Eli J.; Barnard, Arthur W. Science, Vol. 365, Issue 6453 https://doi.org/10.1126/science.aaw3780	journal	July 2019
Electronic structures, charge transfer, and charge order in twisted transition metal dichalcogenide bilayers Zhang, Yang; Liu, Tongtong; Fu, Liang Physical Review B, Vol. 103, Issue 15 https://doi.org/10.1103/PhysRevB.103.155142	journal	April 2021
Spontaneous quantum Hall effect in quarter-doped Hubbard model on honeycomb lattice and its possible realization in doped graphene system Li, Tao EPL (Europhysics Letters), Vol. 97, Issue 3 https://doi.org/10.1209/0295-5075/97/37001	journal	February 2012
Correlated electronic phases in twisted bilayer transition metal dichalcogenides Wang, Lei; Shih, En-Min; Ghiotto, Augusto Nature Materials, Vol. 19, Issue 8 https://doi.org/10.1038/s41563-020-0708-6	journal	June 2020
Realization of nearly dispersionless bands with strong orbital anisotropy from destructive interference in twisted bilayer MoS2 Xian, Lede; Claassen, Martin; Kiese, Dominik Nature Communications, Vol. 12, Issue 1 https://doi.org/10.1038/s41467-021-25922-8	journal	September 2021
Interaction-Driven Topological Phase Diagram of Twisted Bilayer MoTe2 Qiu, Wen-Xuan; Li, Bohao; Luo, Xun-Jiang Physical Review X, Vol. 13, Issue 4 https://doi.org/10.1103/PhysRevX.13.041026	journal	November 2023
Broken mirror symmetry in excitonic response of reconstructed domains in twisted MoSe2/MoSe2 bilayers Sung, Jiho; Zhou, You; Scuri, Giovanni Nature Nanotechnology, Vol. 15, Issue 9 https://doi.org/10.1038/s41565-020-0728-z	journal	July 2020
A tunable bilayer Hubbard model in twisted WSe2 Xu, Yang; Kang, Kaifei; Watanabe, Kenji Nature Nanotechnology, Vol. 17, Issue 9 https://doi.org/10.1038/s41565-022-01180-7	journal	August 2022
Strong interaction between interlayer excitons and correlated electrons in WSe2/WS2 moiré superlattice Miao, Shengnan; Wang, Tianmeng; Huang, Xiong Nature Communications, Vol. 12, Issue 1 https://doi.org/10.1038/s41467-021-23732-6	journal	June 2021
Correlated insulating states at fractional fillings of moiré superlattices Xu, Yang; Liu, Song; Rhodes, Daniel A. Nature, Vol. 587, Issue 7833 https://doi.org/10.1038/s41586-020-2868-6	journal	November 2020
Magic in twisted transition metal dichalcogenide bilayers Devakul, Trithep; Crépel, Valentin; Zhang, Yang Nature Communications, Vol. 12, Issue 1 https://doi.org/10.1038/s41467-021-27042-9	journal	November 2021
Excitonic properties of semiconducting monolayer and bilayer MoT e 2 Robert, C.; Picard, R.; Lagarde, D. Physical Review B, Vol. 94, Issue 15 https://doi.org/10.1103/PhysRevB.94.155425	journal	October 2016
Topological Insulators in Twisted Transition Metal Dichalcogenide Homobilayers Wu, Fengcheng; Lovorn, Timothy; Tutuc, Emanuel Physical Review Letters, Vol. 122, Issue 8 https://doi.org/10.1103/PhysRevLett.122.086402	journal	February 2019
Optically Probing the Asymmetric Interlayer Coupling in Rhombohedral-Stacked MoS2 Bilayer Liang, Jing; Yang, Dongyang; Wu, Jingda Physical Review X, Vol. 12, Issue 4 https://doi.org/10.1103/PhysRevX.12.041005	journal	October 2022
Correlated insulating states at fractional fillings of the WS2/WSe2 moiré lattice Huang, Xiong; Wang, Tianmeng; Miao, Shengnan Nature Physics https://doi.org/10.1038/s41567-021-01171-w	journal	February 2021
Band topology, Hubbard model, Heisenberg model, and Dzyaloshinskii-Moriya interaction in twisted bilayer WSe 2 Pan, Haining; Wu, Fengcheng; Das Sarma, Sankar Physical Review Research, Vol. 2, Issue 3 https://doi.org/10.1103/PhysRevResearch.2.033087	journal	July 2020
Quantum phase diagram of a Moiré-Hubbard model Pan, Haining; Wu, Fengcheng; Das Sarma, Sankar Physical Review B, Vol. 102, Issue 20 https://doi.org/10.1103/PhysRevB.102.201104	journal	November 2020
Gate-tunable heavy fermions in a moiré Kondo lattice Zhao, Wenjin; Shen, Bowen; Tao, Zui Nature, Vol. 616, Issue 7955 https://doi.org/10.1038/s41586-023-05800-7	journal	March 2023
Strongly correlated electrons and hybrid excitons in a moiré heterostructure Shimazaki, Yuya; Schwartz, Ido; Watanabe, Kenji Nature, Vol. 580, Issue 7804 https://doi.org/10.1038/s41586-020-2191-2	journal	April 2020
Hartree-Fock study of the moiré Hubbard model for twisted bilayer transition metal dichalcogenides Zang, Jiawei; Wang, Jie; Cano, Jennifer Physical Review B, Vol. 104, Issue 7 https://doi.org/10.1103/PhysRevB.104.075150	journal	August 2021
Simulation of Hubbard model physics in WSe2/WS2 moiré superlattices Tang, Yanhao; Li, Lizhong; Li, Tingxin Nature, Vol. 579, Issue 7799 https://doi.org/10.1038/s41586-020-2085-3	journal	March 2020
Multifaceted moiré superlattice physics in twisted WSe 2 bilayers Magorrian, S. J.; Enaldiev, V. V.; Zólyomi, V. Physical Review B, Vol. 104, Issue 12 https://doi.org/10.1103/PhysRevB.104.125440	journal	September 2021
Giant magnetic field from moiré induced Berry phase in homobilayer semiconductors Yu, Hongyi; Chen, Mingxing; Yao, Wang National Science Review, Vol. 7, Issue 1 https://doi.org/10.1093/nsr/nwz117	journal	August 2019
Mott and generalized Wigner crystal states in WSe2/WS2 moiré superlattices Regan, Emma C.; Wang, Danqing; Jin, Chenhao Nature, Vol. 579, Issue 7799 https://doi.org/10.1038/s41586-020-2092-4	journal	March 2020
Indirect-to-Direct Band Gap Crossover in Few-Layer MoTe ₂ Lezama, Ignacio Gutiérrez; Arora, Ashish; Ubaldini, Alberto Nano Letters, Vol. 15, Issue 4 https://doi.org/10.1021/nl5045007	journal	March 2015
Interfacial ferroelectricity in rhombohedral-stacked bilayer transition metal dichalcogenides Wang, Xirui; Yasuda, Kenji; Zhang, Yang Nature Nanotechnology, Vol. 17, Issue 4 https://doi.org/10.1038/s41565-021-01059-z	journal	January 2022
Intercell moiré exciton complexes in electron lattices Wang, Xi; Zhang, Xiaowei; Zhu, Jiayi Nature Materials, Vol. 22, Issue 5 https://doi.org/10.1038/s41563-023-01496-2	journal	March 2023
Nature of the Correlated Insulator States in Twisted Bilayer Graphene Xie, Ming; MacDonald, A. H. Physical Review Letters, Vol. 124, Issue 9 https://doi.org/10.1103/PhysRevLett.124.097601	journal	March 2020
Unconventional superconductivity in magic-angle graphene superlattices Cao, Yuan; Fatemi, Valla; Fang, Shiang Nature, Vol. 556, Issue 7699 https://doi.org/10.1038/nature26160	journal	March 2018
Ultraflatbands and Shear Solitons in Moiré Patterns of Twisted Bilayer Transition Metal Dichalcogenides Naik, Mit H.; Jain, Manish Physical Review Letters, Vol. 121, Issue 26 https://doi.org/10.1103/PhysRevLett.121.266401	journal	December 2018
Robust Excitons and Trions in Monolayer MoTe ₂ Yang, Jiong; Lü, Tieyu; Myint, Ye Win ACS Nano, Vol. 9, Issue 6 https://doi.org/10.1021/acsnano.5b02665	journal	May 2015
Anomalous Hall metal and fractional Chern insulator in twisted transition metal dichalcogenides Crépel, Valentin; Fu, Liang Physical Review B, Vol. 107, Issue 20 https://doi.org/10.1103/PhysRevB.107.L201109	journal	May 2023
Gate-tunable heavy fermion quantum criticality in a moiré Kondo lattice Kumar, Ajesh; Hu, Nai Chao; MacDonald, Allan H. Physical Review B, Vol. 106, Issue 4 https://doi.org/10.1103/PhysRevB.106.L041116	journal	July 2022
Quantum criticality in twisted transition metal dichalcogenides Ghiotto, Augusto; Shih, En-Min; Pereira, Giancarlo S. S. G. Nature, Vol. 597, Issue 7876 https://doi.org/10.1038/s41586-021-03815-6	journal	September 2021
Hubbard Model Physics in Transition Metal Dichalcogenide Moiré Bands Wu, Fengcheng; Lovorn, Timothy; Tutuc, Emanuel Physical Review Letters, Vol. 121, Issue 2 https://doi.org/10.1103/PhysRevLett.121.026402	journal	July 2018
Excitonic and Valley-Polarization Signatures of Fractional Correlated Electronic Phases in a WSe 2 / WS 2 Moiré Superlattice Liu, Erfu; Taniguchi, Takashi; Watanabe, Kenji Physical Review Letters, Vol. 127, Issue 3 https://doi.org/10.1103/PhysRevLett.127.037402	journal	July 2021
Spontaneous fractional Chern insulators in transition metal dichalcogenide moiré superlattices Li, Heqiu; Kumar, Umesh; Sun, Kai Physical Review Research, Vol. 3, Issue 3 https://doi.org/10.1103/PhysRevResearch.3.L032070	journal	September 2021

Similar Records

Direct visualization of magnetic domains and moiré magnetism in twisted 2D magnets

Journal Article · 2021 · Science · OSTI ID:1836409

Observation of stacking engineered magnetic phase transitions within moiré supercells of twisted van der Waals magnets

Journal Article · 2024 · Nature Communications · OSTI ID:2396018

Related Subjects

Science & Technology - Other Topics

Programming correlated magnetic states with gate-controlled moiré geometry

Citation Formats

References (42)

Similar Records

Related Subjects