2024/10/27 by Siyu Chen, Wei, Yao, Chen, Siyu +2
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Magnetic properties of thin films
paper · pdf · doi:10.48550/arxiv.2410.20368
We report a first principles computational analysis of two phonon-mediated superconductors, In5Bi3 and In5Sb3. We show that spin-orbit coupling leads to splitting of electron bands around the Fermi energy, resulting in a suppression of the electronic density of states in both compounds. In In5Bi3, the spin-orbit coupling is essential for the dynamical stability of the experimentally observed phase, and the calculated superconducting critical temperature is in close agreement with measurements. In In5Sb3, the spin-orbit coupling significantly reduces the calculated superconducting critical temperature compared to calculations neglecting relativistic effects. Our work emphasises the subtle interplay between spin-orbit interactions and phonon-mediated superconductivity.