Superconductivity-Induced Anomalies in the Spin Excitation Spectra of Underdoped YBa_2 Cu_3 O_{6+x}

B. Keimer; D.L. Milius; H.F. Fong; I.A. Aksay

arxiv: cond-mat/9612110 · v1 · submitted 1996-12-11 · ❄️ cond-mat.supr-con

Superconductivity-Induced Anomalies in the Spin Excitation Spectra of Underdoped YBa₂ Cu₃ O_(6+x)

H.F. Fong , B. Keimer , D.L. Milius , I.A. Aksay This is my paper

classification ❄️ cond-mat.supr-con

keywords excitationmagneticspectraspectralweightanomaliesaroundbeen

0 comments

read the original abstract

Polarized and unpolarized neutron scattering has been used to determine the effect of superconductivity on the magnetic excitation spectra of YBa_2 Cu_3 O_{6.5} (T_c = 52K) and YBa_2 Cu_3 O_{6.7} (T_c = 67K). Pronounced enhancements of the spectral weight centered around 25 meV and 33 meV, respectively, are observed below T_c in both crystals, compensated predominantly by a loss of spectral weight at higher energies. The data provide important clues to the origin of the 40 meV magnetic resonance peak in YBa_2 Cu_3 O_7.

This paper has not been read by Pith yet.

Superconductivity-Induced Anomalies in the Spin Excitation Spectra of Underdoped YBa₂ Cu₃ O_(6+x)

discussion (0)