Basic information

  • Current position: Marie Skłodowska-Curie Actions Postdoctoral Fellow
  • Affiliation: ICFO, Barcelona Institute of Science and Technology, Castelldefels, Spain
  • Office: 224, ICFO
  • Lab: L205, L110, L208, ICFO
  • Contact Information
    • Mobile Phone: +33 631 308 826
    • Office: +34 935 534 164
    • Lab: +34 935 542 213; +34 935 542 212
    • E-mail:
    • Mailing/Shipping address:
         Av. Carl Friedrich Gauss, num. 3
         08860 Castelldefels (Barcelona), Spain

Latest blog posts

Recent publications

  1. J. Barrier, M. Kim, R. Krishna Kumar, N. Xin, P. Kumaravadivel, L. Hague, E. Nguyen, A. I. Berdyugin, C. Moulsdale, V. V. Enaldiev, J. R. Prance, F. H. L. Koppens, R. V. Gorbachev, K. Watanabe, T. Taniguchi, L. I. Glazman, I. V. Grigorieva, V. I. Fal’ko, and A. K. Geim, One-Dimensional Proximity Superconductivity in the Quantum Hall Regime, Nature 628, 741 (2023). [arXiv:2402.14451] [DOI] [PDF]
      author = {Barrier, Julien and Kim, Minsoo and Krishna Kumar, Roshan and Xin, Na and Kumaravadivel, Piranavan and Hague, Lee and Nguyen, Ekaterina and Berdyugin, Alexey I and Moulsdale, Christian and Enaldiev, Vladimir V and Prance, Jonathan R and Koppens, Frank H L and Gorbachev, Roman V and Watanabe, Kenji and Taniguchi, Takashi and Glazman, Leonid I and Grigorieva, Irina V and Fal'ko, Vladimir I and Geim, Andre K},
      title = {One-dimensional proximity superconductivity in the quantum Hall
      year = {2023},
      journal = {Nature},
      pages = {741-745},
      volume = {628},
      issue = {8009},
      arxiv = {2402.14451},
      doi = {10.1038/s41586-024-07271-w}
  2. N. Xin, J. Lourembam, P. Kumaravadivel, A. E. Kazantsev, Z. Wu, C. Mullan, J. Barrier, A. A. Geim, I. V. Grigorieva, A. Mishchenko, A. Principi, V. I. Fal’ko, L. A. Ponomarenko, A. K. Geim, and A. I. Berdyugin, Giant Magnetoresistance of Dirac Plasma in High-Mobility Graphene, Nature 616, 270 (2023). [arXiv:2302.06863] [DOI]
      author = {Xin, Na and Lourembam, James and Kumaravadivel, Piran and Kazantsev, Alexander E and Wu, Zefei and Mullan, Ciaran and Barrier, Julien and Geim, Alexandra A and Grigorieva, Irina V and Mishchenko, Artem and Principi, Alessandro and Fal'ko, Vladimir I and Ponomarenko, Leonid A and Geim, Andre K and Berdyugin, Alexey I},
      title = {Giant magnetoresistance of Dirac plasma in high-mobility graphene},
      year = {2023},
      journal = {Nature},
      pages = {270--274},
      volume = {616},
      issue = {7956},
      arxiv = {2302.06863},
      doi = {10.1038/s41586-023-05807-0}
  3. P. Steiner, S. Adnan, M. Said Ergoktas, J. Barrier, X. Yu, V. Orts, G. Bakan, J. Aze, Y. Malevich, K. Wang, P. Cataldi, M. Bisset, S. Balci, S. Suzer, M. Khafizov, and C. Kocabas, Electrically Controlled Heat Transport in Multilayer Graphene, (2022). [arXiv:2202.10342] [DOI]
      author = {Steiner, Pietro and Adnan, Saqeeb and Said Ergoktas, Muhammed and Barrier, Julien and Yu, Xiaoxiao and Orts, Vincente and Bakan, Gokhan and Aze, Jonathan and Malevich, Yury and Wang, Kaiyuan and Cataldi, Pietro and Bisset, Mark and Balci, Sinan and Suzer, Sefik and Khafizov, Marat and Kocabas, Coskun},
      title = {Electrically controlled heat transport in multilayer graphene},
      year = {2022},
      arxiv = {2202.10342},
      doi = {10.48550/arxiv.2202.10342}
  4. J. Barrier, R. E. Beal, A. Gold-Parker, J. A. Vigil, E. Wolf, L. Waquier, N. J. Weadock, Z. Zhang, L. T. Schelhas, A. F. Nogueira, M. D. McGehee, and M. F. Toney, Compositional Heterogeneity In Cs1-yFayPb(I1-xBrx) 3 Perovskite Films and Its Impact on Phase Behavior, Energy and Environmental Science 14, 6394 (2021). [DOI] [PDF] [SI]
      author = {Barrier, Julien and Beal, Rachel E and Gold-Parker, Aryeh and Vigil, Julian A and Wolf, Eli and Waquier, Louis and Weadock, Nicholas J and Zhang, Zihan and Schelhas, Laura T and Nogueira, Ana Flávia and McGehee, Michael D and Toney, Michael F},
      title = {Compositional Heterogeneity in
                 3 Perovskite Films and its Impact on Phase Behavior},
      year = {2021},
      journal = {Energy and Environmental Science},
      pages = {6394--6405},
      volume = {14},
      number = {12},
      doi = {10.1039/D1EE01184G}

Affiliation & Fundings

Disclaimer: Although I am affiliated with the Instite of Phonotic Sciences (ICFO) and funded by the European Union under grant agreement 101105218, all views and opinions expressed on this blog are solely my own. They do not necessarily reflect those of the European Union or European Research Executive Agency (REA). Neither the European Union nor the granting authority can be held responsible for them. Likely, I do not reflect the views of any present or past employers, funding agencies, colleagues, organisations I have or have had some affiliation with.