Publications

Preprints:

  • “Cryogenic nano-imaging of second-order moiré superlattices”. Niels C.H. Hesp, Sergi Batlle-Porro, Roshan Krishna Kumar, Hitesh Agarwal, David Barcons-Ruiz, Hanan Herzig Sheinfux, Kenji Watanabe, Takashi Taniguchi, Petr Stepanov*, and Frank H.L. Koppens*. https://arxiv.org/abs/2302.05487.

Pre Notre Dame:

  1. “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. Highlighted by: Nature News and Views; JCCM by T. Senthil; and more.
  2. “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. Editor’s Suggestion.
  3. “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. Highlighted by: JCCM by M. Zaletel; The New York Times; and more.
  4. “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. Highlighted by: Nature Phys. News and Views; physicsworld.org.
  5. “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
  6. “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
  7. “Tuning Spin Transport in a Graphene Antiferromagnetic Insulator.” Petr Stepanov, Dmitry L. Shcherbakov, Shi Che, Marc W. Bockrath, Yafis Barlas, Dmitry Smirnov, Kenji Watanabe, Takashi Taniguchi, Roger K. Lake, Chun Ning Lau. Phys. Rev. Applied., 18, 014031. 2022
  8. “Chern mosaic and Berry-curvature magnetism in magic angle graphene.” Sameer Grover , Matan Bocarsly , Aviram Uri , Petr Stepanov , Giorgio Di Battista , Indranil Roy , Jiewen Xiao , Alexander Meltzer , Yuri Myasoedov , Keshav Pareek , Kenji Watanabe , Takashi Taniguchi , Binghai Yan , Ady Stern , Erez Berg , Dmitri K. Efetov and Eli Zeldov. Nature Physics. https://doi.org/10.1038/s41567-022-01635-7. 2022
  9. “Observation of Interband Collective Excitation in Twisted Bilayer Graphene.” Niels CH Hesp, Iacopo Torre, Daniel Rodan-Legrain, Pietro Novelli, Yuan Cao, Stephen Carr, Shiang Fang, Petr Stepanov, David Barcons-Ruiz, Hanan Herzig-Sheinfux, Kenji Watanabe, Takashi Taniguchi, Dmitri K Efetov, Efthimios Kaxiras, Pablo Jarillo-Herrero, Marco Polini, Frank HL Koppens. Nature Physics, 17, pp. 1162-1168. 2021. Highlighted by: phys.org
  10. “Layer- and gate-tunable spin-orbit coupling in a high-mobility few-layer semiconductor”. Dmitry Shcherbakov, Petr Stepanov, Shahriar Memaran, Yaxian Wang, Yan Xin, Jiawei Yang, Kaya Wei, Ryan Baumbach, Wenkai Zheng, Kenji Watanabe, Takashi Taniguchi, Marc Bockrath, Dmitry Smirnov, Theo Sigrist, Wolfgang Windl, Luis Balicas, Chun Ning Lau. Science Advances, 7(5), eabe2892. 2021
  11. “Observation of Flat Bands in Twisted Bilayer Graphene.” Simone Lisi*, Xiaobo Lu*, Tjerk Benschop*, Tobias A de Jong*, Petr Stepanov, Jose R Duran, Florian Margot, Irène Cucchi, Edoardo Cappelli, Andrew Hunter, Anna Tamai, Viktor Kandyba, Alessio Giampietri, Alexei Barinov, Johannes Jobst, Vincent Stalman, Maarten Leeuwenhoek, Kenji Watanabe, Takashi Taniguchi, Louk Rademaker, Sense Jan van der Molen, Milan Allan, Dmitri K Efetov, Felix Baumberger. Nature Physics, 17(2), pp. 189-193. 2021
  12. “Measuring Local Moiré Lattice Heterogeneity of Twisted Bilayer Graphene.” Tjerk Benschop*, Tobias A. de Jong*, Petr Stepanov*, Xiaobo Lu , Vincent Stalman, Sense Jan van der Molen, Dmitri K. Efetov, Milan P. Allan. Physical Review Research, 3(1), 013153. 2021
  13. “Substrate-Dependent Band Structures in Trilayer Graphene/hBN Heterostructures.” Shi Che*, Petr Stepanov*, Supeng Ge, Menglin Zhu, Dongying Wang, Yongjin Lee, Kevin Myhro, Yanmeng Shi, Ruoyu Chen, Ziqi Pi, Cheng Pan, Bin Cheng, Takashi Taniguchi, Kenji Watanabe, Yafis Barlas, Roger K. Lake, Marc Bockrath, Jinwoo Hwang, and Chun Ning Lau. Phys. Rev. Lett., 125, 246401. 2020
  14. “Magic-Angle Bilayer Graphene Nanocalorimeters: Toward Broadband, Energy-Resolving Single Photon Detection.” Paul Seifert, Xiaobo Lu, Petr Stepanov, José Ramón Durán Retamal, John N Moore, Kin-Chung Fong, Alessandro Principi, Dmitri K Efetov. NanoLetters, 20(5). 2020
  15. “Raman Spectroscopy, Photovoltaic Degradation, and Stabilization of Atomically Thin Chromium Tri-iodide.” Dmitry Shcherbakov, Petr Stepanov, Daniel Weber,  Yaxian Wang, Jin, Hu, Yanglin Zhu, Kenji Watanabe, Takashi Taniguchi, Zhiqiang Mao, Wolfgang Windl, Joshua Goldberger, Marc Bockrath, Chun Ning Lau. NanoLetters, 18(7),pp. 4214-4219. 2018
  16. “Integer and Fractional Quantum Hall effect in Ultrahigh Quality Few-layer Black Phosphorus Transistors.” Jiaqie Yang, Son Tran, Jason Wu, Shi Che, Petr Stepanov, Kenji Watanabe, Takashi Taniguchi, Hongwoo Baek, Dmitry Smirnov, Ruoyu Chen, Chun Ning Lau. NanoLetters, 18(1),pp. 229-234. 2018
  17. “Energy Gaps and Layer Polarization of Integer and Fractional Quantum Hall States in Bilayer Graphene.” Yanmeng Shi, Yongjin Lee, Shi Che, Ziqi Pi, Timothy Espiritu, Petr Stepanov, Dmitry Smirnov, Chun Ning Lau, and Fan Zhang. Phys. Rev. Lett., 116, 056601. 2016
  18. “Ionic Liquid Gating of Suspended MoS2 Field Effect Transistor Devices.” Fenglin Wang, Petr Stepanov, Mason Gray, Chun Ning Lau, Mikhail E. Itkis, Robert C. Haddon. NanoLetters, 15(8),pp. 5284-5288. 2015
  19. “Annealing and Transport Studies of Suspended Molybdenum Disulfide Devices.” Fenglin Wang, Petr Stepanov, Mason Gray and Chun Ning Lau. Nanotechnology, 26(10). 2015
  20. “Interface and interlayer barrier effects on photo-induced electron emission from low work function diamond films.” Tianyin Sun, Franz A. M. Koeck, Petr Stepanov, Robert J. Nemanich. Diamond and Related Mat., 44, pp. 123-128. 2014
  21. “Thermoelectric properties of Bi0.5Sb1.5Te3/C60 nanocomposites.” Vladimir Blank, Sergei Buga, Vladimir Kulbachinskii, Vladimir Kytin, Viacheslav Medvedev, Mikhail Popov, Petr Stepanov, Vasilii Skok. Phys. Rev. B, 86, 075426. 2012
  22. “Composites of Bi2–xSbxTe3 nanocrystals and fullerene molecules for thermoelectricity.” Vladimir Kulbachinskii, Vladimir Kytin, Mikhail Popov, Sergei Buga, Petr Stepanov, Vladimir Blank. Journal of Solid State Chemistry, 193, pp. 64-70. 2012
  23. “C60-doping of nanostructured Bi–Sb–Te thermoelectrics.” Mikhail Popov, Sergei Buga, Phillipp Vysikaylo, Petr Stepanov, Vasilii Skok, Viacheslav Medvedev, Evgeny Tatyanin, Viktor Denisov, Alexei Kirichenko, Viktor Aksenenkov, Vladimir Blank. Phys. Status Solidi A, 208, pp. 2783–2789. 2011

Popular Science and News Articles:

  1. “Thermopower Probes Electronic Flat Bands”. Nature Physics, 18, 617–618. 2022
  2. “Graphene With a Twist”. Culturico.com. 2021

Patents:

“High resolution superconducting nano-calorimeter.” US20210140833A1. Dmitri K Efetov, Paul Seifert, Xiaobo Lu, José Durán, Petr Stepanov