skip to main content

Evidence of a Spin Resonance Mode in the Iron-Based Superconductor Ba0.6K0.4Fe2As2 from Scanning Tunneling Spectroscopy

Shan, Lei ; Gong, Jing ; Wang, Yong-Lei ; Shen, Bing ; Hou, Xingyuan ; Ren, Cong ; Li, Chunhong ; Yang, Huan ; Wen, Hai-Hu ; Li, Shiliang ; Dai, Pengcheng

Physical Review Letters, 31 May 2012, Vol.108(22) [Periódico revisado por pares]

Texto completo disponível

Citações Citado por
  • Título:
    Evidence of a Spin Resonance Mode in the Iron-Based Superconductor Ba0.6K0.4Fe2As2 from Scanning Tunneling Spectroscopy
  • Autor: Shan, Lei ; Gong, Jing ; Wang, Yong-Lei ; Shen, Bing ; Hou, Xingyuan ; Ren, Cong ; Li, Chunhong ; Yang, Huan ; Wen, Hai-Hu ; Li, Shiliang ; Dai, Pengcheng
  • Assuntos: Physics
  • É parte de: Physical Review Letters, 31 May 2012, Vol.108(22)
  • Descrição: We used high-resolution scanning tunneling spectroscopy to study the hole-doped iron pnictide superconductor Ba$_{0.6}$K$_{0.4}$Fe$_{2}$As$_{2}$ ($T_c=38$ K). Features of a bosonic excitation (mode) are observed in the measured quasiparticle density of states. The bosonic features are intimately associated with the superconducting order parameter and have a mode energy of $\sim$14 meV, similar to the spin resonance measured by inelastic neutron scattering. These results indicate a strong electron-spin excitation coupling in iron pictnide superconductors, similar to that in high-$T_c$ copper oxide superconductors. Comment: 5 pages, 4 figures, accepted by PRL
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.