Connecting High-Field and High-Pressure Superconductivity in UTe_{2}

Area of Science:

• Condensed Matter Physics
• Materials Science
• Superconductivity

Background:

• Uranium Ditelluride (UTe2) exhibits unusual superconducting properties, including multiple superconducting phases.
• Understanding the interplay between pressure, magnetic fields, and superconductivity in UTe2 is crucial.

Purpose of the Study:

• To comprehensively map the superconducting phase diagram of UTe2 under combined pressure and magnetic fields.
• To investigate the evolution of different superconducting phases in UTe2.

Main Methods:

• Thermodynamic measurements were performed on UTe2.
• The experiments combined hydrostatic pressure and high magnetic fields up to 30 Tesla.

Main Results:

• A continuous evolution was observed between the high-field superconducting phase at ambient pressure and the zero-field, high-temperature superconducting phase above 0.2 GPa.
• The study reveals a detailed superconducting phase diagram for UTe2.

Conclusions:

• The superconducting phase diagram of UTe2 is highly sensitive to both pressure and magnetic fields.
• The findings provide new insights into the complex nature of superconductivity in UTe2 and its multiple phases.