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arXiv 0806.2819cond-mat.str-elcond-mat.other
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流动铁磁体CoS2中边缘费米液体的鉴别

Identification of a Marginal Fermi-Liquid in Itinerant Ferromagnet CoS2

M. Otero-Leal, F. Rivadulla, M. Garcia-Hernandez, A. Pineiro, V. Pardo, D. Baldomir, J. Rivas

摘要:

我们报告在不同温度,磁场和压力下的比热,电阻率和磁化率的测量提供了坚实的证据CoS2是一个边缘费米液体。系统相图中三临界点的存在为检验自旋涨落理论提供了一个高精度极限的机会。磁场抑制自旋波动的幅度,恢复传统的费米液体行为,连续连接两个状态。

英文摘要:

We report specific heat, resistivity and susceptibility measurements at different temperatures, magnetic fields, and pressures to provide solid evidence of CoS2 being a marginal Fermi liquid. The presence of a tricritical point in the phase diagram of the system provides an opportunity to test the spin fluctuation theory with a high limit of accuracy. A magnetic field suppresses the amplitude of the spin fluctuations and recovers conventional Fermi liquid behavior, connecting both states continuously.

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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