Disorder is key to tuning a high

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Published: 2026-09-17T20:41:15.730Z • Permanent link

Physicists at Cornell University have made a groundbreaking discovery in the field of superconductivity, shedding new light on the behavior of the unique material iron selenide, or FeSe. Led by Dr. Marina G. Epstein, a renowned expert in the field, the research team found that minimizing disorder, rather than varying the electron count, is the key factor in controlling superconductivity in FeSe. This breakthrough has significant implications for our understanding of the complex relationships between disorder, electron count, and superconductivity.

Researchers at Cornell's Kavli Institute at Cornell University conducted a series of experiments using advanced spectroscopic techniques to study the properties of FeSe. They found that by carefully controlling the level of disorder in the material, they were able to tune its superconducting properties, allowing them to achieve unprecedented levels of conductivity. The study's findings were published in a recent issue of the journal Physical Review X.

The discovery of the relationship between disorder and superconductivity in FeSe is a significant development in the field of materials science. It challenges the long-held assumption that varying the electron count is the primary factor in controlling superconductivity, and opens up new avenues for research into the complex behavior of superconducting materials. The study's findings have the potential to inspire the development of new materials and technologies with improved superconducting properties.

Understanding the behavior of superconducting materials is crucial for advancing our knowledge of the fundamental laws of physics. The discovery of the relationship between disorder and superconductivity in FeSe provides a new framework for understanding the complex relationships between disorder, electron count, and superconductivity. The study's findings have the potential to inspire new research into the behavior of superconducting materials, and could lead to the development of new technologies with improved superconducting properties.

The research team's findings are a testament to the power of interdisciplinary collaboration and the importance of basic scientific research. The study's results were made possible by the unique combination of expertise and resources available at Cornell's Kavli Institute, and highlight the importance of investing in fundamental scientific research.

Funding for the research was provided by the National Science Foundation, which has a long history of supporting basic scientific research. The study's findings were published in a recent issue of Physical Review X, which is widely recognized as a leading journal in the field of materials science.