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arXiv 0707.3501cond-mat.supr-concond-mat.str-el
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电子掺杂铜氧化物超导体Pr $_{0.88}$ LaCe $_{0.12}$ CuO $_{4-δ}$的掺杂和自旋动力学的能量演化

Doping and energy evolution of spin dynamics in the electron-doped cuprate superconductor Pr$_{0.88}$LaCe$_{0.12}$CuO$_{4-δ}$

Li Cheng, Shiping Feng

摘要:

基于动能驱动的超导机制,研究了电子掺杂铜氧化物超导体Pr $_{0.88}$ LaCe $_{0.12}$ CuO $_{4-δ}$在超导态的掺杂和磁激发的能量演化.结果表明,在低能区存在一个宽的公度散射峰,共振能位于该公度散射峰的范围内。这种低能量的公度散射在高能量下向外分散成连续的环状非公度散射。该理论还预测了一个圆顶形的掺杂依赖的共振能量。

英文摘要:

The doping and energy evolution of the magnetic excitations of the electron-doped cuprate superconductor Pr$_{0.88}$LaCe$_{0.12}$CuO$_{4-δ}$ in the superconducting state is studied based on the kinetic energy driven superconducting mechanism. It is shown that there is a broad commensurate scattering peak at low energy, then the resonance energy is located among this low energy commensurate scattering range. This low energy commensurate scattering disperses outward into a continuous ring-like incommensurate scattering at high energy. The theory also predicts a dome shaped doping dependent resonance energy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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