Magnetic resonance peak and nonmagnetic impurities
Y. SidisP. BourgesB. KeimerL. P. RegnaultJ. BossyA. IvanovB. HennionP. Gautier-PicardG. Collin
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Y. SidisP. BourgesB. KeimerL. P. RegnaultJ. BossyA. IvanovB. HennionP. Gautier-PicardG. Collin
文献摘要
Nonmagnetic Zn impurities are known to strongly suppress superconductivity.
We review their effects on the spin excitation spectrum in $\rm
YBa_2Cu_3O_{7}$, as investigated by inelastic neutron scattering measurements.