NMR relaxation and neutron scattering in a Fermi-liquid picture of the metallic copper oxides.

NMR relaxation and neutron scattering in a Fermi-liquid picture of the metallic copper oxides.
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金属铜氧化物的费米液相图中的核磁共振弛豫和中子散射。

DOI:
10.1103/physrevlett.65.2466
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发表时间:
1990
影响因子:
8.6
通讯作者:
K. Levin
K. Levin
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
J. Lu;Q. Si;Ju H. Kim;K. Levin

文献摘要

被引文献

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使用费米液体的形式主义,其中的Cu {ital d}电子是准本地化,我们计算的NMR弛豫的Cu和O的网站,随温度变化的磁化率,和中子散射截面。我们的微观计算的动态磁化率有助于解耦窄带现象的自旋涨落效应。前者导致低(相干)的能量尺度和相当大的结构中的Lindhard函数。后者有助于增强这些效果。
Using a Fermi-liquid formalism in which the Cu {ital d} electrons are quasilocalized, we calculate the NMR relaxation for the Cu and O sites, the temperature-dependent magnetic susceptibility, and the neutron-scattering cross section. Our microscopic calculations of the dynamical susceptibility help to decouple narrow-band phenomena from spin-fluctuation effects. The former lead to a low (coherence) energy scale and considerable structure in the Lindhard function. The latter help to enhance these effects.