Kumar, Dushyant ; Joshi, P. C. ; Hossain, Z. ; Budhani, R. C. (2013) Spin polarized carrier injection from full Heusler alloy Co2MnSi into superconducting NbN Applied Physics Letters, 102 (11). p. 112409. ISSN 0003-6951
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Official URL: http://doi.org/10.1063/1.4798286
Related URL: http://dx.doi.org/10.1063/1.4798286
Abstract
The spin-polarized current injection (SPCI) experiments, where the spin-polarized current (IS) is injected into a 25 μm wide superconducting NbN bridge from a ferromagnetic Co2MnSi layer by tunneling through MgO barrier, show a large (≈67% ) suppression of superconducting critical current (IC) due to IS injection at T/TC ≈ 0.4 . This corresponds to a large dynamic gain of ≈36 at 3 K, which is 40 times higher than the gain at 6.5 K. Such a rapid rise of gain at lower temperatures strongly suggests a dominant role of SPCI in IC suppression as compared to the effect of Joule-heating. This research has been funded by I.I.T. Kanpur and the J. C. Bose Fellowship of R.C.B. D.K. acknowledges financial support (Junior Research Fellowship) from UGC-India. REFERENCES
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 135103 |
| Deposited On: | 19 Jan 2023 04:55 |
| Last Modified: | 19 Jan 2023 06:06 |
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