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arXiv 0804.0356cond-mat.str-elcond-mat.supr-con
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ARPES、中子和高$T_c$机制

ARPES, Neutrons, and the High-$T_c$ Mechanism

Wei-Cheng Lee, A. H. MacDonald

摘要:

广泛的ARPES和低能量非弹性中子散射研究铜氧化物超导体可以成功地描述使用弱耦合理论,其中准粒子在正方形晶格上通过标量和自旋相关的有效相互作用。在本文中,我们指出在Bi $_2$ Sr $_2$ Ca $_{1-x}$ Y $_x$ Cu $_2$ O $_8$(Bi 2212)中,两种探针都与主要的近邻海森堡相互作用相一致。我们讨论了高$T_c$超导机制的这一发现的影响。

英文摘要:

Extensive ARPES and low-energy inelastic neutron scattering studies of cuprate superconductors can be successfully described using a weak-coupling theory in which quasiparticles on a square lattice interact via scalar and spin-dependent effective interactions. In this article we point out that in Bi$_2$Sr$_2$Ca$_{1-x}$Y$_x$Cu$_2$O$_8$ (Bi2212) both probes are consistent with dominant near-neighbour Heisenberg interactions. We discuss the implications of this finding for the mechanism of high-$T_c$ superconductivity.

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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