Effect of disorder on the NMR relaxation rate in two-band superconductors
B. Mitrovic, K. V. Samokhin
Abstract
We calculate the effect of nonmagnetic impurity scattering on the spin-lattice relaxation rate in two-band superconductors with the s-wave pairing symmetry. It is found that for the interaction parameters appropriate for MgB2 the Hebel-Slichter peak is suppressed by disorder in the limit of small interband impurity scattering rate. In the limit of strong impurity scattering, when the gap functions in the two bands become nearly equal, the single-band behavior is recovered with a well-defined coherence peak just below the transition temperature.
Create a lesson
Related papers
High-Temperature Superconductivity of the Fe-Se-H compound
S. I. Bondarenko, A. A. Prokhorov, N. N. Galtsov et al.
Stabilization of Interband Phase Solitons in Two-Band Noncentrosymmetric Superconducting Rings
Yuriy Yerin, Boris Malomed, Stefan-Ludwig Drechsler et al.
Strain-driven orbital-selective reconstruction and bicollinear-to-stripe evolution in FeTe
Zhenfeng Ouyang, Yin Chen, Yi-Heng Tian et al.
Supercurrent detection and manipulation of topological phase transitions in Shiba-Majorana hybrid systems
Debika Debnath, Ioannis Ioannidis, Paramita Dutta et al.
Exact pair density wave in topological moire flat bands and universal superfluid stiffness
Zhengzhi Wu, Ming-rui Li, Hong Yao
Electrical manipulation of oxygen stoichiometry in multiterminal YBa2Cu3O7-δ junctions
Daniel Stoffels, Caio C. Quaglio-Gomes, Nicolas Lejeune et al.