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arXiv 0811.4417cond-mat.str-elcond-mat.supr-con
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重费米子超导体beta-YbAlB4费米面中f电子的作用

The role of f -electrons in the Fermi surface of the heavy fermion superconductor beta-YbAlB4

E. C. T. O'Farrell, D. A. Tompsett, S. E. Sebastian, N. Harrison, C. Capan, L. Balicas, K. Kuga, T. Matsuo, M. Tokunaga, S. Nakatsuji, G. Csanyi, Z. Fisk, M. L. Sutherland

摘要:

我们提出了一个详细的量子振荡研究的费米面最近发现的Yb基重费米子超导体β-YbAlB 4。我们比较的数据,从10到45特斯拉的字段,能带结构计算使用的局部密度近似。分析的数据表明,f-洞参与费米表面的最高磁场研究。我们评论这些发现的意义,这种材料的非常规超导性能。

英文摘要:

We present a detailed quantum oscillation study of the Fermi surface of the recently discovered Yb-based heavy fermion superconductor beta-YbAlB4 . We compare the data, obtained at fields from 10 to 45 Tesla, to band structure calculations performed using the local density approximation. Analysis of the data suggests that f-holes participate in the Fermi surface up to the highest magnetic fields studied. We comment on the significance of these findings for the unconventional superconducting properties of this 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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