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arXiv 0810.1812cond-mat.str-elcond-mat.supr-con
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CeIrIn ${_5}$系统的磁输运:反铁磁涨落的影响

Magnetotransport in the CeIrIn${_5}$ system: The influence of antiferromagnetic fluctuations

Sunil Nair, M. Nicklas, J. L. Sarrao, J. D. Thompson, F. Steglich, S. Wirth

摘要:

本文综述了重费米子超导体CeIrIn $_5$的磁输运测量。灵敏的测量的霍尔效应和磁阻(MR)被用来阐明该系统的低温相图。正常状态下的磁输运是高度异常的,和实验签名的赝隙样的前体状态超导性,以及两个不同的散射时间的证据管理的霍尔效应和MR观察。我们的观察指出了反铁磁涨落对这类材料的磁输运的影响。这些发现的影响,无论是在重费米子系统中的非常规超导性的背景下,以及在高温超导铜氧化物的关系进行了讨论。

英文摘要:

We present an overview of magnetotransport measurements on the heavy-fermion superconductor CeIrIn$_5$. Sensitive measurements of the Hall effect and magnetoresistance (MR) are used to elucidate the low temperature phase diagram of this system. The normal-state magnetotransport is highly anomalous, and experimental signatures of a pseudogap-like precursor state to superconductivity as well as evidence for two distinct scattering times governing the Hall effect and the MR are observed. Our observations point out the influence of antiferromagnetic fluctuations on the magnetotransport in this class of materials. The implications of these findings, both in the context of unconventional superconductivity in heavy-fermion systems as well as in relation to the high temperature superconducting cuprates are 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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