"Residual spin susceptibility in the spin-triplet orbital-singlet model"

Yue Yu: Alfred K. C. Cheung, S. Raghu and D. F. Agterberg; Physical Review B, 11/15/18.

Additional Authors: Alfred K. C. Cheung, S. Raghu and D. F. Agterberg

Abstract:

Nuclear magnetic resonance and Knight shift measurements are critical tools in the identification of spin-triplet superconductors. We discuss the effects of spin-orbit coupling on the Knight shift and susceptibilities for a variety of spin triplet multi-orbital gap functions with orbital-singlet character and compare their responses to “traditional” single-band spin-triplet (px + ipy) superconductors. We observe a non-negligible residual spin susceptibility at low temperature.