Browsing by Author "OBERMEIER, G."

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  • Critical temperature oscillations and reentrant superconductivity due to the FFLO like state in F/S/F trilayers 
    KEHRLE, J.; ZDRAVKOV, V. I.; OBERMEIER, G.; GARCIA-GARCIA, J.; ULLRICH, A.; MÜLLER, C.; MORARI, R.; SIDORENKO, A. S.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2012)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers, in which the establishing of a Fulde-Ferrell Larkin-Ovchinnikov (FFLO) like state leads to interference effects of the superconducting pairing wave function, form ...
  • Double re-entrance of superconductivity in superconductor/ferromagnet bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V.; KEHRLE, J.; MORARI, R.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; RYAZANOV, V.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (IOP Publishing, 2009)
    We report on the first observation of a double suppression of superconductivity in a superconductor/ferromagnet layered system. The result was obtained using a superconductor/ferromagnetic-alloy bilayer of Nb/Cu41Ni59 with ...
  • Experimental observation of the triplet spin-valve effect in a superconductor-ferromagnet heterostructure 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; LENK, D.; KRUG VON NIDDA, H.-A.; MÜLLER, C.; KUPRIYANOV, M. Yu.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2013)
    The theory of superconductor-ferromagnet heterostructures with two ferromagnetic layers predicts the generation of a long-range, odd-in-frequency triplet pairing at noncollinear alignment (NCA) of the magnetizations of the ...
  • Extinction and Recovery of Superconductivity by Interference in Superconductor/Ferromagnet Bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; KEHRLE, J.; MORARI, R.; ANTROPOV, E.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; RYAZANOV, V. V.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (Springer Nature Switzerland, 2009)
    In superconductor–ferromagnet (S/F) metallic contacts, the superconducting condensate penetrates through the S/F interface into a ferromagnetic layer. In contrast to the conventional S/N proximity effect, the pairing wave ...
  • Full-switching FSF-type superconducting spin-triplet magnetic random access memory element 
    LENK, D.; MORARI, R.; ZDRAVKOV, V. I.; ULLRICH, A.; KHAYDUKOV, Yu; OBERMEIER, G.; MÜLLER, C.; SIDORENKO, A. S.; NIDDA von, H.-A. Krug; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (American Physical Society, 2017)
    In the present work a superconducting Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 nanoscale thin film heterostructure is investigated, which exhibits a superconducting transition temperature, Tc, depending on the history of magnetic field ...
  • Interference effects of the superconducting pairing wavefunction due to the Fulde-Ferrell-Larkin-Ovchinnikov like state in ferromagnet/superconductor bilayers 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; ULLRICH, A.; GSELL, S.; LENK, D.; MÜLLER, C.; MORARI, R.; SIDORENKO, A. S.; RYAZANOV, V. V.; TAGIROV, L. R.; TIDECKS, R.; HORN, S. (IOP Publishing, 2011)
    The theoretical description of the Fulde–Ferrell–Larkin–Ovchinnikov like state establishing in nanostructured bilayers of ferromagnetic (F) and superconducting (S) material leads to critical temperature oscillations and ...
  • Memory effect and triplet pairing generation in the superconducting exchange biased Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 layered heterostructure 
    ZDRAVKOV, V. I.; LENK, D.; MORARI, R.; ULLRICH, A.; OBERMEIER, G.; MÜLLER, C.; NIDDA Von, H.-A. Krug; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (AIP Publishing LLC, 2013)
    We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve structure, the resistive state of which depends on the preceding magnetic field polarity. The effect is based on a strong exchange bias (about -2 ...
  • Quasi-one-dimensional Fulde-Ferrell-Larkin-Ovchinnikov-like state in Nb/Cu0.41Ni0.59 bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; KEHRLE, J.; MORARI, R.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; KUPRIYANOV, M. Yu.; RYAZANOV, V. V.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (Springer Nature Switzerland, 2009)
    In a ferromagnet (F) being in contact with a superconductor (S) an unconventional finite-momentum pairing of electrons forming Cooper pairs occurs. As a consequence, interference effects of the pairing wave function, leading ...
  • Reentrant superconductivity and superconducting critical temperature oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 grown on cobalt oxide 
    ZDRAVKOV, V. I.; KEHRLE, J.; LENK, D.; OBERMEIER, G.; ULLRICH, A.; MÜLLER, C.; NIDDA Von, H.-A. Krug; MORARI, R.; SIDORENKO, A. S.; TAGIROV, L. R.; HORN, S.; TIDECKS, R. (AIP Publishing LLC, 2013)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers constitute the core of a superconducting spin valve. The switching effect of the spin valve is based on interference phenomena occurring due to the proximity effect ...
  • Reentrant Superconductivity in Nb/Cu1−xNix Bilayers 
    ZDRAVKOV, V.; SIDORENKO, A.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2006)
    We report on the first observation of a pronounced reentrant superconductivity phenomenon in a superconductor/ferromagnet layered system. The results were obtained using a superconductor/ferromagnetic-alloy bilayer of ...
  • Reentrant superconductivity in superconductor-ferromagnetic-alloy bilayers 
    ZDRAVKOV, V. I.; SIDORENKO, A. S.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; RYAZANOV, V. V.; HORN, S.; TIDECKS, R.; TAGIROV, L. R.; KUPRIYANOV, M. Yu. (Springer Nature Switzerland, 2008)
    Oscillating behavior of superconductivity in ultrathin bilayers of niobium and ferromagnetic alloy Cu41Ni59 has been observed. This phenomenon was most pronounced at a Nb layer thickness of about 7.3 nm: the superconducting ...
  • Reentrant superconductivity in superconductor/ferromagnetic-alloy bilayers 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; NIDDA Von, H.-A. Krug; LINDNER, J.; MOOSBURGER-WILL, J.; NOLD, E.; MORARI, R.; RYAZANOV, V. V.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2010)
    We studied the Fulde-Ferrell-Larkin-Ovchinnikov-type state established due to the proximity effect in superconducting Nb/Cu41Ni59 bilayers. Using a special wedge-type deposition technique, series of 20–35 samples could be ...
  • A Spin Valve Core Structure based on the Fulde-Ferrell Larkin-Ovchinnikov Like State: Studies on Bilayers and Trilayers of Superconductors and Ferromagnets 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; MÜLLER, C.; LENK, D.; MORARI, R.; SIDORENKO, A.; HORN, S.; TIDECKS, R.; TAGIROV, L. (IOP Publishing, 2012)
    Interference effects of the superconducting pairing wave function in thin film bilayers of Nb as a superconductor (S) and Cu41Ni59 as ferromagnetic (F) material lead to critical temperature oscillations and reentrant ...
  • Superconducting critical temperature reentrance in F/S/F three-layered structures based on Nb AND Cu41Ni59 alloy 
    ZDRAVKOV, V. I.; OBERMEIER, G.; GARCIA-GARCIA, J.; KEHRLE, J.; ULLRICH, A.; MULLER, C.; MORARI, R.; ANTROPOV, E.; HORN, S.; TAGIROV, L. R.; TIDECKS, R.; SIDORENKO, A. S.; GHITU, D. (Technical University of Moldova, 2012)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers, in which the establishing of a Fulde-Ferrell Larkin-Ovchinnikov (FFLO) like state leads re-entrance behavior of superconductivity, form the core structure of the ...

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