Spin-resolved spectra of Shiba multiplets from Mn impurities in MgB2
Spin-resolved spectra of Shiba multiplets from Mn impurities in MgB2
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DOI：
10.1103/physrevb.77.174516
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发表时间：
2008-05-01
影响因子：
3.7
通讯作者：
Zarand, Gergely
中科院分区：
文献类型：
--
作者：
Moca, Catalin Pascu;Demler, Eugene;Zarand, Gergely
研究了磁性Mn离子对双带超导体MgB_2的影响，计算了磁性杂质附近的总扫描隧道谱和自旋分辨扫描隧道谱。我们表明，当考虑到Mn离子的d-壳层的内部结构时，在光谱中出现多个Shiba态。这些多重态的存在可能会显着改变广泛的超导主机和磁性杂质的局部隧穿谱的整体解释。
We study the effect of magnetic Mn ions on the two-band superconductor MgB2, and compute both the total and spin-resolved scanning tunneling spectrum in the vicinity of the magnetic impurity. We show that when the internal structure of the Mn ion's d-shell is taken into account, multiple Shiba states appear in the spectrum. The presence of these multiplets could alter significantly the overall interpretation of local tunneling spectra for a wide range of superconducting hosts and magnetic impurities.