Zeitschriftenartikel:
G. Yu, Y. Li, E. Motoyama, X. Zhao, N. Barisic, Y. Cho, P. Bourges, K. Hradil, R. Mole, M. Greven:
"Magnetic resonance in the model high-temperature superconductor HgBa2CuO4+delta";
Physical Review B,
81
(2010),
6;
S. 064518
- 064522.
Kurzfassung englisch:
Inelastic neutron-scattering measurements of single-CuO2-layer HgBa2CuO4+δ reveal an antiferromagnetic resonance with energy ωr=56 meV (≈6.8kBTc) below the superconducting transition temperature Tc≈96 K. The resonance is energy-resolution limited and exhibits an intrinsic momentum width of about 0.2 Å−1, consistent with prior work on several other cuprates. The rather large value of ωr is identical to the characteristic energy of the electron-boson spectral density obtained from recent optical conductivity work, consistent with the notion that the charge carriers are strongly coupled to magnetic fluctuations.
Schlagworte:
74.72.-h, 74.25.Ha, 78.70.Nx
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1103/PhysRevB.81.064518
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.