2017/12/06 by Ryohei Wakatsuki, Naoto Nagaosa · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Critical current #Current (fluid) #Electronic and Structural Properties of Oxides #Magnetic and transport properties of perovskites and related materials #Materials science #Physics #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.121.026601
published as Phys. Rev. Lett. 121, 026601 (2018) · 7 pages, 2 figures
arxiv created 2017/12/06 · openalex publication_date 2018/07/09 · arxiv updated 2018/07/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We study theoretically the nonreciprocal charge transport in two-dimensional noncentrosymmetric superconductors with the Rashba spin-orbit interaction. The resistivity R depends on the current I linearly under the external magnetic field B, i.e., R=R0(1+γBI), which is called the magnetochiral anisotropy. It is found that the coefficient γ is gigantically enhanced by the superconducting fluctuation with the components of both spin singlet and triplet pairings, compared with that in the normal state. This finding offers a method to quantitatively estimate the ratio of the pairing interactions between the singlet and triplet channels including its sign.