As of my last update in September 2021, there are several top-tier journals in the field of superconductors. These journals are well-respected and widely recognized in the scientific community. Please note that the status of journals may change over time, so it's essential to verify their current rankings and impact factors.

  1. Nature Communications: Nature Communications is an open-access multidisciplinary journal that covers a broad range of topics, including superconductors. It is known for publishing high-impact research and breakthrough findings.

  2. Physical Review Letters (PRL): PRL is a renowned journal published by the American Physical Society (APS). It is dedicated to publishing short, high-impact research articles across all areas of physics, including superconductivity.

  3. Superconductor Science and Technology: Published by the Institute of Physics (IOP), this journal is specifically focused on superconducting materials, devices, and applications. It covers both fundamental and applied research in the field.

  4. Applied Physics Letters (APL): APL is also published by the American Institute of Physics (AIP) and is widely regarded as a top-tier journal for applied physics research, including superconductors and their applications.

  5. Physical Review B (PRB): Another prestigious journal from the APS, PRB is dedicated to condensed matter physics and covers various aspects of superconductivity and related phenomena.

  6. Superconductor Science and Technology: This journal from IOP is exclusively dedicated to superconductors, their properties, applications, and related technologies.

  7. Journal of Superconductivity and Novel Magnetism: This journal publishes research related to superconductivity, magnetic materials, and novel phenomena at the intersection of these fields.