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0-π transition induced by the barrier strength in spin superconductor Josephson junctions |
| Wen Zeng(曾文)1, Rui Shen(沈瑞)1,2 |
1 National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China;
2 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China |
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Abstract The Andreev-like levels and the free energy of the spin superconductor/insulator/spin superconductor junction are obtained by using the Bogoliubov-de Gennes equation. The phase dependence of the spin supercurrents exhibits a 0-π transition by changing the barrier strength. The dependences of the critical current on the barrier strength and the temperature are also presented.
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Received: 04 May 2018
Revised: 19 June 2018
Accepted manuscript online:
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PACS:
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74.50.+r
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(Tunneling phenomena; Josephson effects)
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73.43.Jn
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(Tunneling)
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| Fund: Project supported by the National Key R&D Program of China (Grant No. 2017YFA0303203) and the National Natural Science Foundation of China (Grant No. 11474149). |
Corresponding Authors:
Rui Shen
E-mail: shen@nju.edu.cn
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Cite this article:
Wen Zeng(曾文), Rui Shen(沈瑞) 0-π transition induced by the barrier strength in spin superconductor Josephson junctions 2018 Chin. Phys. B 27 097401
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