1篇
您的检索式：作者名="D.F.Agterberg"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Electron-phonon coupling and spin fluctuations in the Ising superconductor NbSe_(2)显示文摘Ising superconductivity,observed in NbSe2 and similar materials,has generated tremendous interest.Recently,attention was called to the possible role that spin fluctuations(SF)play in this phenomenon,in addition to the dominant electron–phonon coupling(EPC);the possibility of a predominantly triplet state was discussed and led to a conjecture of viable singlet–triplet Leggett oscillations.However,these hypotheses have not been put to a quantitative test.In this paper,we report first principle calculations of the EPC and also estimate coupling with SF,including full momentum dependence.We find that:(1)EPC is strongly anisotropic,largely coming from the K-K0 scattering,and therefore excludes triplet symmetry even as an excited state;(2)superconductivity is substantially weakened by SF,but anisotropy remains as above;and,(3)we do find the possibility of a Leggett mode,not in a singlet–triplet but in an s_(++)–s_(±)channel. | S.Das H.Paudyal E.R.Margine D.F.Agterberg I.I.Mazin | 2023 | npj Computational Materials2023，，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员