Surface states and their possible role in the superconductivity of MgB 2

Surface states and their possible role in the superconductivity of MgB 2
复制标题

表面态及其在 MgB 2 超导性中的可能作用

DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
T. Mishonov
T. Mishonov
中科院分区：
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文献类型：
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作者：
V. Servedio;S. Drechsler;T. Mishonov

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被引文献

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我们报道了体态和表面态的Layer-Korringa-Kohn-Rostocker计算以及相应的光电子发射强度。我们的理论结果很好地再现了Uchiyama等人最近的角分辨光电子能谱数据。[物理。莱特牧师。88,157002(2002年)]。至少分配了两个FS。讨论了SFS对微粉样品中颗粒超导态的上临界场各向异性和其他性质的影响。
We report layer-Korringa-Kohn-Rostocker calculations for bulk and surface states (SFS) as well as the corresponding photoemission intensities of ${mathrm{MgB}}_{2}.$ Our theoretical results reproduce very well the recent angle resolved photoemission data by Uchiyama et al. [Phys. Rev. Lett. 88, 157002 (2002)]. At least two SFS are assigned. Consequences of SFS on the anisotropy of the upper critical fields and other properties in the superconducting state of grains in micropowder samples are discussed.