Superconducting gap modulations: Are they from pair density waves or pair-breaking scattering?
Superconducting gap modulations: Are they from pair density waves or pair-breaking scattering?
In his seminal work published in Acta Physica Sinica in 1965, Yu Lu pointed out that the superconducting gap exhibits weak modulations near the pair-breaking magnetic impurity in a superconductor. In the past ten years, a series of high-resolution scanning tunneling microscopy works reported weak superconducting gap modulations in certain …