caa a22 4500 445381310 CHVBK 20180317143018.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0890-x doi (NATIONALLICENCE)springer-10.1007/s10948-010-0890-x Effect of Frozen Magnetic Flux on the Electrical Transport Characteristics of Superconductor-Ferromagnet Junction [Elektronische Daten] [S. Bakaul, B. Wu, G. Han, Y. Wu] We studied electrical transport characteristics of lateral superconductor (SC)-ferromagnet (FM)-superconductor devices which were found to exhibit two strikingly different differential resistance states at zero field. The key difference between these states is that the critical current (I c) is dramatically lower for one state (state2) than the other (state1). Moreover, state2 exhibits a higher zero bias resistance than state1. We explain this as an effect of magnetic field from the frozen flux in SC on the Andreev reflection process at the SC-FM interface. The magnetoresistance (MR) curves at different dc current biases are nonhysteretic and symmetric with respect to zero field axis when the device is at state1. In contrary to this, MR curves at state2 are asymmetric and show a pronounced hysteresis at high bias current. These effects indicate a coupling between applied field and frozen flux, which affects the transport characteristics of the SC-FM interface. Springer Science+Business Media, LLC, 2010 Frozen flux nationallicence Andreev reflection nationallicence Critical current nationallicence Superconductor-ferromagnet junction nationallicence Bakaul S. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut Wu B. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut Han G. Data Storage Institute, DSI Building, 5 Engineering Drive 1, 117608, Singapore, Singapore aut Wu Y. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 951-955 1557-1939 24:1-2<951 2011 24 10948 https://doi.org/10.1007/s10948-010-0890-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0890-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bakaul S. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut NATIONALLICENCE 700 1- Wu B. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut NATIONALLICENCE 700 1- Han G. Data Storage Institute, DSI Building, 5 Engineering Drive 1, 117608, Singapore, Singapore aut NATIONALLICENCE 700 1- Wu Y. Department of Electrical and Computer Engineering, National University of Singapore, 1 Engineering drive 3, 117576, Singapore, Singapore aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 951-955 1557-1939 24:1-2<951 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer