IRG 2: Layered Quantum Materials

IRG 2 is creating and studying new forms of quantum matter in atomically layered materials and controlling novel topological and excitonic phase transitions within these materials, with potentially disruptive impact on energy and information technologies.



  1. Electrically Tunable Correlated and Topological States in Twisted Monolayer-Bilayer Graphene

    Shaowen Chen, Minhao He, Ya-Hui Zhang, Valerie Hsieh, Zaiyao Fei, K. Watanabe, T. Taniguchi, David H. Cobden, Xiaodong Xu, Cory R. Dean & Matthew Yankowitz
  2. Symmetry Breaking in Twisted Double Bilayer Graphene

    Minhao He, Yuhao Li, Jiaqi Cai, Yang Liu, K. Watanabe, T. Taniguchi, Xiaodong Xu, Matthew Yankowitz
  3. Suppression of Superconductivity by Anisotropic Strain near a Nematic Quantum Critical Point

    Paul Malinowski, Qianni Jiang, Joshua J. Sanchez, Joshua Mutch, Zhaoyu Liu, Preston Went, Jian Liu, Philip J. Ryan, Jong-Woo Kim & Jiun-Haw Chu
  4. Metasurface Integrated Monolayer Exciton Polariton

    Yueyang Chen, Shengnan Miao, Tianmeng Wang, Ding Zhong, Abhi Saxena, Colin Chow, James Whitehead, Dario Gerace, Xiaodong Xu, Su-Fei Shi, and Arka Majumdar
  5. Microscopic Model of Stacking-Fault Potential and Exciton Wave Function in GaAs

    Durnev, M.; Glazov M. M.; Linpeng X.; Viitaniemi M. L. K.; Matthews B.; Spurgeon S. R.; Sushko P. V.; Wieck A. D.; Ludwig A.; Fu K.-M. C.
  6. Magnetic Proximity and Nonreciprocal Current Switching in a Monolayer WTe2 Helical Edge

    Zhao, W.; Fei, Z.; Song, T.; Choi, H. K.; Palomaki, T.; Sun, B.; Malinowski, P.; McGuire, A. M.; Chu, J.-H.; Xu, X.; Cobden, D. C.
  7. Apparatus Design for Measuring of the Strain Dependence of the Seebeck Coefficient of Single Crystals

    Qian, T.; Mutch, J.; Wu, L.; Went, P.; Jiang, Q.; Malinowski, P.; Yang, J.; Chu, J.-H.
  8. Valley Phonons and Exciton Complexes in a Monolayer Semiconductor

    He, M.; Rivera, P.; Tuan, D. V.; Wilson, N. P.; Yang, M.; Taniguchi, T.; Watanabe, K.; Yan, J.; Mandrus, D. G.; Yu, H.; Dery, H.; Yao, W.; Xu, X.
  9. Coupling of Photonic Crystal Cavity and Interlayer Exciton in 2D Heterobilayer

    Rivera, P.; Fryett, T. K.; Chen, Y.; Liu, C-H.; Ray, E.; Hatami, F.; Yan, J.; Mandrus, D.; Yao, W.; Majumdar, A.; Xu, X.
  10. Switching 2D Magnetic States via Pressure Tuning of Layer Stacking

    Song, T.; Fei, Z.; Yankowitz, M.; Lin, Z.; Jiang, Q.; Hwangbo, K.; Zhang, Q.; Sun, B.; Taniguchi, T.; Watanabe, K.; McGuire, M. A.; Graf, D.; Cao, T.; Chu, J.-H.; Cobden, D. H.; Dean, C. R.; Xiao, D.; Xu, X.
  11. Visualizing Electrostatic Gating Effects in Two-Dimensional Heterostructures

    Nguyen, P.; Teutsch, N. C.; Wilson, N. P.; Kahn, J.; Xia, X.; Graham, A. J.; Kandyba, V.; Giampietri, A.; Barinov, A.; Constantinescu, G. C.; Yeung, N.; Hine, N. D. M.; Xu, X.; Cobden, D. H.; Wilson, N. R.
  12. Evidence for a Strain Tuned Topological Phase Transition in ZrTe5

    Mutch, J.; Chen, W-C.; Went, P.; Qian, T.; Wilson, I. Z.; Andreev, A.; Chen, C.-C., Chu, J.-H.
  13. Atomically Thin CrCl3: An In-Plane Layered Antiferromagnetic Insulator

    Cai, X.; Song, T.; Wilson, N. P.; Clark, G.; He, M.; Zhang, X.; Taniguchi, T.; Watanabe, K.; Yao, W.; Xiao, D.; McGuire, M. A.; Cobden, D. C.; Xu, X.
  14. Imaging Quantum Spin Hall Edges in Monolayer WTe2

    Shi, Y.; Kahn, J.; Niu, B.; Fei, Z.; Sun, B.; Cai, X.; Francisco, B. A.; Wu, D.; Shen, Z. X.; Xu, X.; Cobden, D. H.; Cui, Y. T.
  15. Voltage Control of a van der Waals Spin-Filter Magnetic Tunnel Junction

    Song, T.; Tu, W. Y.; Carnahan, C.; Cai, X.; Taniguchi, T.; Watanabe, K.; McGuire, M. A.; Cobden, D. H.; Xiao, D.; Yao, W.; Xu, X.
  16. Gate-Induced Superconductivity in a Monolayer Topological Insulator

    Sajadi, E.; Palomaki, T. A.; Fei, Z.; Zhao, W.; Bement, P.; Olsen, C.; Luescher, S.; Xu, X.; Folk, J. A.; Cobden, D. H.
  17. Ultrathin van der Waals Metalenses

    Liu, C-H.; Zheng, J.; Colburn, S.; Fryett, T. K.; Chen, Y.; Xu, X.; Majumdar, A.
  18. Deterministic Positioning of Colloidal Quantum Dots on Silicon Nitride Nanobeam Cavities

    Chen, Y.; Ryou, A.; Friedfeld, M. R.; Fryett, T.; Whitehead, J.; Cossairt, B. M.; Majumdar, A.
  19. Two-Dimensional Itinerant Ising Ferromagnetism in Atomically thin Fe3GeTe2

    Fei, Z.; Huang, B.; Malinowski, P.; Wang, W.; Song, T.; Sanchez, J.; Yao, W.; Xiao, D.; Zhu, X.; May, A.; Wu, W.; Cobden, D. H.; Chu, J.; Xu, X.
  20. Ferroelectric Switching of a Two-Dimensional Metal

    Fei, Z.; Zhao, W.; Palomaki, T. A.; Sun, B.; Miller, M. K.; Zhao, Z.; Yan, J.; Xu, X.; Cobden, D. H.
  21. Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures

    Song, T.; Cai, X.; Tu, M. W.; Zhang, X.; Huang, B.; Wilson, N. P.; Seyler, K. L.; Zhu, L.; Taniguchi, T.; Watanabe, K.; McGuire, M. A.; Cobden, D. H.; Xiao, D.; Yao, W.; Xu, X.
  22. Encapsulated Silicon Nitride Nanobeam Cavity for Nanophotonics using Layered Materials

    Fryett, T. K.; Chen, Y.; Whitehead, J.; Peycke, Z. M.; Xu, X.; Majumdar, A.