caa a22 4500 445382031 CHVBK 20180317143020.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0902-x doi (NATIONALLICENCE)springer-10.1007/s10948-010-0902-x Non-linear Flux Flow Resistance of Type-II Superconducting Films [Elektronische Daten] [G. Grimaldi, A. Leo, C. Cirillo, A. Casaburi, R. Cristiano, C. Attanasio, A. Nigro, S. Pace, R. Huebener] We analyze the flux-flow (FF) regime in type-II superconducting films exhibiting quite strong pinning. By driving the vortex lattice (VL) up to high dissipative states, the moving VL undergoes an instability, leading to an abrupt change from the FF to the normal state, which is displayed in the current-voltage characteristics as a voltage jump at a critical vortex velocity v ∗. The temperature and magnetic field dependence of v ∗ is investigated in different materials, and an unpredicted low field behavior of v ∗(B) is found. Moreover, for velocities lower than v ∗, a non-linear FF resistance is observed, with a "peak” in the current dependence of the dynamic resistance. This is a remarkable feature of a dynamic transition from disordered to ordered VL occurring in the FF state. We suggest that both unusual effects observed in v ∗(B) and R FF(I) can be accounted for intrinsic pinning. Springer Science+Business Media, LLC, 2010 Flux pinning nationallicence Flux flow instability nationallicence Peak effect nationallicence Type-II superconducting films nationallicence Grimaldi G. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Leo A. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Cirillo C. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Casaburi A. Physics Department E.R. Caianiello, Università di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Cristiano R. Istituto di Cibernetica "E. Caianiello” del CNR, 80078, Pozzuoli (Na), Italy aut Attanasio C. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Nigro A. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Pace S. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut Huebener R. Physikalisches Institut, Universitaet Tuebingen, 72076, Tuebingen, Germany aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 81-87 1557-1939 24:1-2<81 2011 24 10948 https://doi.org/10.1007/s10948-010-0902-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0902-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grimaldi G. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Leo A. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Cirillo C. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Casaburi A. Physics Department E.R. Caianiello, Università di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Cristiano R. Istituto di Cibernetica "E. Caianiello” del CNR, 80078, Pozzuoli (Na), Italy aut NATIONALLICENCE 700 1- Attanasio C. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Nigro A. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Pace S. CNR-SPIN-Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy aut NATIONALLICENCE 700 1- Huebener R. Physikalisches Institut, Universitaet Tuebingen, 72076, Tuebingen, Germany aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 81-87 1557-1939 24:1-2<81 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer