Interplay Between Spin‐Triplet Pairing and Ferromagnetism in Uranium Ditelluride

ABSTRACT UTe 2 is a recently discovered unconventional superconductor known for its unique properties, including spin‐triplet pairing and resilience to high magnetic fields. UTe₂ remains superconducting under extreme conditions, making it a promising candidate for advancing renewable energy technologies. Its potential applications include high‐efficiency power transmission, magnetic energy storage systems, and superconducting magnets for wind turbines and fusion reactors. Theoretical study of the interplay between ferromagnetism and spin‐triplet superconductivity in UTe 2 is the main goal of the current research work. Utilizing the double time temperature‐dependent Green's function technique and formulating a model Hamiltonian for the system under consideration, it is possible to derive the superconducting transition temperature ( T C ), magnetic ordering temperature ( T m ), and superconducting and magnetic ordering parameters (Δ) and ( M ), respectively. Subsequently, the phase diagrams of T C versus Δ, T C versus M , and T m versus M are plotted using the experimental and theoretical values and taking into account reasonable approximations of the parameters in the obtained expressions with the help of softwares such as Python and MATLAB. Ultimately, the potential coexistence of ferromagnetism and spin triplet superconductivity in UTe 2 by integrating the phase diagrams is demonstrated. The findings of this work are compatible with other experimental findings.