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 SM ISO690:2012MUNTYANU, Fiodor M., NENKOV , Konstantin A., ZALESKI, Andrzej Janusz, MUNTEAN (SLOBODEANU), Neli, CHISTOL, Vitalie. Evolution of superconductivity and weak magnetism in inclination interfaces of Bi, Sb and Bi1-xSbx (0.07 ≤x ≤ 0.2) alloys. In: Solid State Communications, 2019, vol. 299, pp. 1-5. ISSN 0038-1098. DOI: https://doi.org/10.1016/j.ssc.2019.113660 |
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  Solid State Communications |
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| Volumul 299 / 2019 / ISSN 0038-1098 /ISSNe 1879-2766 | |
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| DOI:https://doi.org/10.1016/j.ssc.2019.113660 | |
| Pag. 1-5 | |
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Using Quantum Design SQUID magnetometer, we studied the magnetic and superconducting properties of high quality inclination bicrystal interfaces of Bi, Sb and 3D topological insulator Bi1-xSbx (0.06 ≤ x ≤ 0.2). One or two superconducting phases with Tc ≤ 21 K and magnetic hysteresis loops on a diamagnetic background typical for strong type II superconductors were identified in Bi and some Bi-Sb nano-width interfaces. However, the other interfaces of Bi1-xSbx (0.06 ≤ x ≤ 0.2) as well as of Sb with a higher carrier density exhibit a superconducting transition and a ferromagnetic hysteresis loop or a dual loop (superimposed ferromagnetic and superconducting loops) against a paramagnetic background and thereby indicate the occurrence of superconductivity and weak ferromagnetism. |
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| Cuvinte-cheie A. bicrystal interface, A. bismuth, Antimony, bismuth-antimony alloys, D. 3D topological insulator, D. superconductivity and ferromagnetism |
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