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arXiv 0904.2591cond-mat.str-el
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普适场致电荷密度波Phase Diagram:理论与实验

Universal Field-Induced Charge-Density-Wave Phase Diagram: Theory versus Experiment

A. G. Lebed

摘要:

本文提出了一种由高磁场在准低维导体中产生的场致电荷密度波(FICDW)相的理论。我们证明,在层状准一维导体,相应的临界磁场比是普遍的,不依赖于任何拟合参数。特别是,我们发现,$H_1/H_0 = 0.73, \ H_2/H_0 = 0.59, H_3/H_0 = 0.49, H_4/H_0 = 0.42$,其中$H_n$是一个临界字段之间的FICDW相位与数字$n$和$n+1$的相变。所提出的理论与$α$ -(ET)$_2$ KHg(SCN)$_4$材料中已有的实验数据在定性和定量上都非常一致。

英文摘要:

We suggest a theory of the Field-Induced Charge-Density-Wave (FICDW) phases, generated by high magnetic fields in quasi-low-dimensional conductors. We demonstrate that, in layered quasi-one-dimensional conductors, the corresponding critical magnetic fields ratios are universal and do not depend on any fitting parameter. In particular, we find that $H_1/H_0 = 0.73, \ H_2/H_0 = 0.59, H_3/H_0 = 0.49, H_4/H_0 = 0.42$, where $H_n$ is a critical field of a phase transition between the FICDW phases with numbers $n$ and $n+1$. The suggested theory is in very good qualitative and quantitative agreements with the existing experimental data in $α$-(ET)$_2$KHg(SCN)$_4$ material.

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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