Petr Stepanov
Assistant Professor, Department of Physics & Astronomy
- Office
- 436 Nieuwland Science Hall
Notre Dame, IN 46556 - Phone
- +1 574-631-9454
- pstepano@nd.edu
Research Interests
Professor Petr Stepanov is a member of the Condensed Matter Physics group at University of Notre Dame and the Stavropoulos Center for Complex Quantum Matter. He uses two-dimensional materials for studying emergent quantum phenomena with multiple experimental approaches including microscopic high-quality 2D crystal assembly, cryogenic near-field microscopy and quantum electronic transport.
Professor Stepanov’s research highlights include:
- Manipulation of strong electronic interactions in graphene-based moiré materials.
- Local photocurrent studies of strongly correlated phenomena in magic angle twisted bi/trilayer graphene heterostructures.
- Plasmon polaritons in strongly correlated environment.
- Studies of crystal symmetry breaking in moiré electronic flat bands.
- Revealing superconductors and orbital ferromagnetic states in the same moiré device for further studies of exotic quantum phenomena.
- Studies of pure spin transport in graphene antiferromagnetic insulators.
- Quantum Hall effect in multi-Dirac band electronic systems.
Education
PhD in Physics, The Ohio State University, Columbus, OH. 2018
BSc and MSc in Applied Physics and Mathematics, Moscow Institute of Physics and Technology, Moscow. RU. 2012
Publications
- “Untying the insulating and superconducting orders in magic-angle graphene.” Petr Stepanov, Ipsita Das, Xiaobo Lu, Ali Fahimniya, Kenji Watanabe, Takashi Taniguchi, Frank HL Koppens, Johannes Lischner, Leonid Levitov, Dmitri K Efetov. Nature, 583, 375-378. 2020.
- “Competing zero-field Chern insulators in Superconducting Twisted Bilayer Graphene.” Petr Stepanov, Ming Xie, Kenji Watanabe, Takashi Taniguchi, Xiaobo Lu, Allan H MacDonald, B Andrei Bernevig, Dmitri K Efetov. Phys. Rev. Lett., 127, 197701. 2021.
- “Superconductors, orbital magnets, and correlated states in magic angle bilayer graphene.” Xiaobo Lu, Petr Stepanov, Wei Yang, Ming Xie, Mohammed Ali Aamir, Ipsita Das, Carles Urgell, Kenji Watanabe, Takashi Taniguchi, Guangyu Zhang, Adrian Bachtold, Allan H MacDonald, Dmitri K Efetov. Nature, 574, 653-657. 2019.
- “Long-Distance Spin Transport Through a Graphene Quantum Hall Antiferromagnet.” Petr Stepanov, Shi Che, Dmitry Shcherbakov, Jiawei Yang, Kevin Thilahar, Greyson Voigt, Marc W. Bockrath, Dmitry Smirnov, Kenji Watanabe, Takashi Taniguchi, Roger K. Lake, Yafis Barlas, Allan H. MacDonald, Chun Ning Lau. Nature Physics, 14(9), 907-911. 2018.
- “Quantum Parity Hall effect and Topological Phases in ABA Graphene.” Petr Stepanov, Yafis Barlas, Shi Che, Kevin Myhro, Greyson Voigt, Ziqi Pi, Kenji Watanabe, Takashi Taniguchi, Dmitry Smirnov, Maxim Kharitonov, Fan Zhang, Roger K. Lake, Allan H. MacDonald, Chun Ning Lau. PNAS, 116, 10286-10290. 2019
- “Tunable Symmetries of Integer and Fractional Quantum Hall Phases in Heterostructures with Multiple Dirac Bands.” Petr Stepanov, Yafis Barlas, Tim Espiritu, Shi Che, Kenji Watanabe, Takashi Taniguchi, Dmitry Smirnov, and Chun Ning Lau. Phys. Rev. Lett., 117, 076807. 2016