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arXiv 0801.1728cond-mat.supr-con
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在实空间和动量表象中铜氧化物的二分量物理

The two-component physics in cuprates in the real space and in the momentum representation

Lev P. Gor'kov, Gregory B. Teitel'baum

摘要:

利用中子散射、核磁共振和核磁共振氢谱数据,首次在实空间中研究了铜氧化物中动态和静态两相共存的演化过程。霍尔效应和ARPES谱的分析揭示了LSCO中存在两组载流子。依赖于T的分量是由于在布里渊区中的波腹点附近看到的束缚电子-空穴结构的热激活,因此也为动量表示引入了双分量物理。对所谓的“范霍夫带”的解释经历了巨大的变化。伪间隙物理的研究结果的重要性进行了强调。与最近的STM和STS结果的关系进行了讨论。

英文摘要:

Gradual evolution of two phase coexistence between dynamical and static regimes in cuprates is first investigated in the real space by making use of the available neutron scattering, NMR and mSR data. Analysis of the Hall effect and the ARPES spectra reveals the presence of two groups of charge carriers in LSCO. The T-dependent component is due to the thermal activation of bound electron-hole structures seen near antinodal points in the Brillouin zone, thus introducing the two-component physics also for the momentum representation. Interpretation of so-called "van Hove bands" undergoes drastic changes. Importance of the findings for pseudo-gap physics is stressed. Relation to some recent STM and STS results is discussed.

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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