Fabrication and transport properties of superconducting thin films

S/F hybrids: Interplay between superconductivity and magnetism

 

Proximity effect in S/F systems is a very active field of research, due both to the rich physics originated from the coexistence of two competing orderings, and to the numerous suggestions for the engineering applications of these heterostructures. The research activity of the group is devoted to the investigation of the superconducting properties of artificial superconductor/ferromagnetic (S/F) heterostructures based on conventional metals. In particular in the recent years the attention focused mainly on the physical phenomena related to the inhomogeneous character of the superconducting order parameter in these systems. Recently the experimental research activity was devoted to the so-called odd frequency triplet superconductivity, by depositing and characterizing hybrids consisting of spin-singlet superconductors interfaced to ferromagnets with inhomogeneous magnetization profile. The aim is to advance in the understanding of the mechanisms for the generation and control of spin-polarized supercurrents with the twofold goal of deepening the knowledge of fundamental physics and of designing new devices.

 


 

[1] N. Pompeo, K. Torokhtii, C. Cirillo, A.V. Samokhvalov, E.A. Ilyina, C. Attanasio, A.I. Buzdin, and E. Silva, Thermodynamic nature of the 0–pi quantum transition in superconductor/ferromagnet/superconductor trilayers, Phys. Rev. B , 064510 (2014).

[2] S.L. Prischepa, M.Yu. Kupriyanov, C. Cirillo, C. Attanasio, Magnetic Memory Effect in Type-II Superconductor/Ferromagnet Bilayers. Superconductor Science and Technology, , 055024, 2014.

[3] C. Attanasio, C. Cirillo, Quasiparticle relaxation mechanisms in superconductor/ferromagnet bilayers, J. Phys.: Condens. Matter , 083201, 2012.

[4] K. Torokhtii, C. Attanasio, C. Cirillo, E.A. Ilyina, N. Pompeo, S. Sarti, E. Silva. Vortex motion in Nb/PdNi/Nb trilayers, Physica C , 140, 2012.

[5] E.A. Ilyina, J.M. Hernandez, A. Garcia-Santiago, , C. Attanasio, Physica C , 140, 2012.

[6] P. Romano, A. Polcari, , C. Attanasio. Non-monotonic behaviour of the superconducting order parameter in Nb/PdNi bilayers observed through point contact spectroscopy, Superconductors Science and Technology , 095017, 2012.

[7] V. N. Kushnir, S. L. Prischepa, , A. Vecchione, C. Attanasio, M. Yu. Kupriyanov, J. Aarts. Multiple Order Parameter Configurations in Superconductor/Ferromagnet Multilayers. Physical Review B , 214512, 2011.

[8] Vecchione, R. Fittipaldi, , M. Hesselberth, J. Aarts, S.L. Prischepa, V.N. Kushnir, M.Yu. Kupriyanov, C. Attanasio. X-ray Scattering Study of Interfacial Roughness in Nb/PdNi Multilayers. Surface Science , 1791, 2011.

[9] C. Cirillo, V. Pagliarulo, H. Myoren, C. Bonavolontà, L. Parlato, G. P. Pepe, C. Attanasio, Quasiparticle energy relaxation times in NbN/CuNi nanostripes from critical velocity measurements Phys. Rev. B 84, 054536, 2011.

[10] E.A. Ilyina, , C. Attanasio, Quasiparticles relaxation processes in Nb/CuNi bilayers, Eur. Phys. J. B , 53, 2011.

[11] C. Cirillo, S.L. Prischepa, M. Salvato, C. Attanasio, M. Hesselberth, and J. Aarts, Phys. Rev. B 72, 144511 (2005)

[12] A. Angrisani Armenio, C. Cirillo, G. Iannone, S.L. Prischepa, and C. Attanasio, Phys. Rev. B 76, 24515 (2007)

[13] C. Cirillo, A. Rusanov, C. Bell, and J. Aarts, Phys. Rev. B 75, 174510 (2007)

[14] S.L. Prischepa, C. Cirillo, C. Bell, V.N. Kushnir, C. Attanasio, M.Y. Kupriyanov, JETP Lett. 88, 375 (2008)

[15] C. Cirillo, C. Bell, G. Iannone, S.L. Prischepa, J. Aarts, C. Attanasio, Phys. Rev. B 80, 094510 (2009)

 


 




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Interplay between superconducting and magnetism

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Superconducting nanowires networks
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