Tuning the Strange-metal Phase in Cuprate Superconductors with High Pressure

This PhD project at the University of Bristol's School of Physics focuses on investigating the strange-metal phase in cuprate superconductors using high-pressure techniques. Cuprate superconductors are known for their record-high transition temperatures at ambient pressure, but the underlying mechanism of superconductivity remains elusive. Traditional theories rely on coherent electronic states forming Cooper pairs, but recent research suggests that incoherent electronic states may also play a significant role. The project aims to study the crossover from the strange-metal phase, characterized by incoherent electronic transport, to the standard Fermi-liquid behavior of coherent quasiparticles. By applying high pressure to high-quality samples, the research will preserve material purity and reveal intrinsic behaviors, potentially uncovering the missing link between the strange-metal phase and normal metal Fermi liquid. The successful candidate will use electrical transport measurements to map coherent and incoherent contributions, analyzing resistivity, magnetoresistance, and Hall effect data. The project is supervised by Dr. Sven Friedemann and Professor Nigel Hussey, with support from J Buhot, and involves collaboration with international facilities such as the European High Magnetic Field laboratories. The School of Physics at Bristol offers a vibrant graduate research community, comprehensive induction and training programs, and strong support for diversity and career development. Funding is available for home students, covering living expenses, tuition, and training, with a limited number of fully-funded places for outstanding international candidates. Applicants should have a strong background in physics or a related field and meet the university's English language requirements. The application deadline is January 19, 2026. For more information, contact the Bristol Physics Graduate School at [email protected].