Spin-flipping with Holmium: case study of proximity effect in superconductor/ferromagnet/superconductor heterostructures
Spin-flipping with Holmium: case study of proximity effect in superconductor/ferromagnet/superconductor heterostructures
复制标题
钬自旋翻转:超导体/铁磁体/超导体异质结构中邻近效应的案例研究
DOI:
10.1080/14786435.2014.969350
复制
发表时间:
2014
影响因子:
1.6
通讯作者:
Fritsch D
中科院分区:
文献类型:
--
作者:
Fritsch D
Superconductor/ferromagnet/superconductor heterostructures exhibit a so-called long-range proximity effect, provided some layers of conical magnet Holmium (Ho) are included in the respective interface regions. The Ho layers lead to a spin-flip process at the interface, generating equal-spin spin-triplet pairing correlations in the ferromagnet. These equal-spin spin-triplet pairing correlations penetrate much further into the heterostructure compared with the spin-singlet and unequal-spin spin-triplet correlations which occur in the absence of Ho. Here, we present calculations of this effect based on the spin-dependent microscopic Bogoliubov de Gennes equations solved within a tight-binding model in the clean limit. The influence of the ferromagnet and conical magnet layer thickness on the induced equal-spin spin-triplet pairing correlations is obtained and compared to available experimental data. It is shown that, in agreement with the experiment, a critical minimum thickness of conical magnet layers has to be present in order to observe a sizeable amount of equal-spin spin-triplet pairing correlations.
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影响因子:
3.3
作者:
D. Fritsch;J. Annett
通讯作者:
D. Fritsch;J. Annett
DOI:
10.1103/physrevb.87.144507
发表时间:
2012-06
期刊:
--
影响因子:
--
作者:
V. Zdravkov;J. Kehrle;G. Obermeier;D. Lenk;H. V. Nidda;C. Muller;A. Sidorenko;S. Horn;R. Tidecks;L. Tagirov
通讯作者:
V. Zdravkov;J. Kehrle;G. Obermeier;D. Lenk;H. V. Nidda;C. Muller;A. Sidorenko;S. Horn;R. Tidecks;L. Tagirov
影响因子:
3.7
作者:
Chien;O. Valls;Klaus Halterman
通讯作者:
Klaus Halterman
影响因子:
3.7
作者:
Gingrich, E. C.;Quarterman, P.;Birge, Norman O.
通讯作者:
Birge, Norman O.
影响因子:
3.7
作者:
Covaci, L;Marsiglio, F
通讯作者:
Marsiglio, F