Erratum: Unconventional pairing originating from the disconnected fermi surfaces of superconducting LaFeAsO1-xFx (Physical Review Letters (2008) 101 (087004))
Erratum: Unconventional pairing originating from the disconnected fermi surfaces of superconducting LaFeAsO1-xFx (Physical Review Letters (2008) 101 (087004))
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DOI：
10.1103/physrevlett.102.109902
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发表时间：
2009-03
影响因子：
8.6
通讯作者：
K. Kuroki;S. Onari;R. Arita;H. Usui;Yukio Tanaka;H. Kontani;H. Aoki
中科院分区：
文献类型：
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作者：
K. Kuroki;S. Onari;R. Arita;H. Usui;Yukio Tanaka;H. Kontani;H. Aoki
在我们的信的图2(D)中，出现与费米表面相交的带隙节点是由于计算的最后阶段的一个错误，即从轨道表示(我们在其中解了Eliashberg方程)到带表示的么正变换。正确的图2如下所示，其中主要变化出现在(D)中，而(A)、(B)相同，而(C)、(E)基本保持不变，就费米面上的特征而言。能带表示中的带隙的对角元素在费米面上是完全开放的[示意性地，图2(B)的上面板]，而非对角元素在这个意义上不那么重要。然而，与该图相关的原始信函的主要结论在以下意义上保持不变：(I)沿费米面的带隙大小仍然有很大变化。(Ii)关于与费米面相交的带隙节点的出现方式取决于参数值，我们确实发现当能带填充超过6.3时，S波带隙中的节点几乎接触或与费米面相交，或者当我们采用理论上优化的晶格参数所获得的能带结构时也是如此。这与Graser等人最近得到的结果是一致的，他们采用了一个五带模型，该模型是通过对理论上优化的晶格结构的能带结构进行拟合而得到的。在这些情况下，d浪与S浪势均力敌，甚至占据主导地位。这可以自然地理解为(，=2)和(，0)自旋涨落共存的结果，正如原信中所断言的那样。
The appearance of the gap nodes intersecting the Fermi surface in Fig. 2 (d) of our Letter was due to an error in the final stage of the calculation, ie, the unitary transformation from the orbital representation (in which we have solved the Eliashberg equation) to the band representation. The correct Fig. 2 is shown below, where the main changes appear in (d), while (a),(b) are the same, and (c),(e) remain essentially unchanged as far as the features on the Fermi surface are concerned. The diagonal elements of the gap in the band representation is fully open on the Fermi surface [schematically the upper panel of Fig. 2 (b)], and the off-diagonal elements are less important in this sense. However, the main conclusions of the original Letter related to this figure do remain unaltered in the following sense.(i) The magnitude of the gap along the Fermi surface still varies significantly.(ii) Regarding the way in which the gap nodes intersecting the Fermi surface appear depending on the parameter values, we do find that the nodes in the s-wave gap nearly touch or intersect the Fermi surface for band fillings beyond 6.3, or also when we adopt a band structure obtained for the theoretically optimized lattice parameters. This is consistent with the result recently obtained by Graser et al., who have adopted a five-band model obtained by fitting a band structure of the theoretically optimized lattice structure [1]. In these cases, d wave closely competes with or dominates over s wave. This can be naturally understood as a consequence of the coexistence of (,= 2) and (, 0) spin fluctuations as asserted in the original Letter.