Three-dimensional quantum Griffiths singularity in bulk iron-pnictide
superconductors
Three-dimensional quantum Griffiths singularity in bulk iron-pnictide
superconductors
The quantum Griffiths singularity (QGS) is a phenomenon driven by quenched disorders that break conventional scaling invariance and result in a divergent dynamical critical exponent during quantum phase transitions (QPT). While this phenomenon has been well-documented in low-dimensional conventional superconductors and in three-dimensional (3D) magnetic metal systems, its presence in …