IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Author "TIDECKS, R."

Browsing Articole din publicaţii internaţionale by Author "TIDECKS, R."

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  • Anisotropy and interlayer interaction in Mo/Si multilayers 
    SIDORENKO, A. S.; FOGEL, N. Ya.; BUCHSTAB, E. I.; TIDECKS, R.; MOLDOVAN, O. B. (ELSEVIER, 2002)
    The interlayer interaction in superconducting Mo/Si multilayers is determined by the measurements of the upper critical magnetic field and the magnetoconductivity in magnetic fields, parallel and perpendicular to the layers. ...
  • Change of the effective dimensionality of an Nb/CuNi bilayer in an external magnetic field 
    KEHRLE, J.-M.; ZDRAVKOV, V.; MORARI, R.; PREPELITSA, A.; MÜLLER, C.; WIXFORTH, A.; HORN, S.; TIDECKS, R.; SIDORENKO, A. (IOP Publishing, 2009)
    A dimensional crossover of superconducting fluctuations in an external magnetic field, applied parallel to the layers, has been found for superconductor/ferromagnet bilayers of Nb/Cu41Ni59. By lowering the temperature, a ...
  • Cobalt/Cobaltoxide Exchange Bias System for Diluted Ferromagnetic Alloy Films in Superconducting Spin-Valves 
    SIDORENKO, A. S.; LENK, D.; ZDRAVKOV, V. I.; MORARI, R.; ULLRICH, A.; MÜLLER, C.; KRUG VON NIDDA, H.-A.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (Springer Nature Switzerland, 2016)
    The present work reports on the influence of a Cobalt sublayer on a conventional exchange bias CoOx/Cu41Ni59 interface. For superconducting spintronics the ability to exchange bias diluted ferromagnetic alloys is an essential ...
  • 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 ...
  • The effect of Cu/Mn substitution in 2223 Bi-based HTSC 
    SIDORENKO, A.; SCHEIDT, E.-W.; HAIDER, F.; KLEMM, M.; HORN, S.; KONOPKO, L.; TIDECKS, R. (Elservier, 2002)
    The effect of partial Cu by Mn substitution in the 2223 high-Tc superconductor (Bi0.8Pb0.2)2(Sr0.9Ba0.1)2Ca2(Cu1−xMnx)3O10+y with Mn concentration in the range 0<x<0.3 was studied by resistivity, DC susceptibility, XRD, ...
  • Evidence for two-dimensional nucleation of superconductivity in MgB2 
    SIDORENKO, A. S.; TAGIROV, L. R.; ROSSOLENKO, A. N.; RYAZANOV, V. V.; KLEMM, M.; TIDECKS, R. (IOP Publishing, 2002)
    According to the crystal structure of MgB2 and band structure calculations quasi–two-dimensional (2D) boron planes are responsible for the superconductivity. We report on critical fields and resistance measurements of 30 ...
  • Experimental and theoretical analysis of the upper critical field in ferromagnet-superconductor-ferromagnet trilayers 
    ANTROPOV, E.; KALENKOV, M. S.; KEHRLE, J.; ZDRAVKOV, V. I.; MORARI, R.; SOCROVISCIUC, A.; LENK, D.; HORN, S.; TAGIROV, L. R.; ZAIKIN, A. D.; SIDORENKO, A. S.; HAHN, Horst; TIDECKS, R. (IOP Publishing, 2013)
    The upper critical magnetic field Hc2 in thin film ferromagnet–superconductor–ferromagnet trilayer spin-valve cores is studied experimentally and theoretically in geometries perpendicular and parallel to the heterostructure ...
  • 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 ...
  • Fluctuation conductivity in superconducting MgB2 
    SIDORENKO, A. S.; TAGIROV, L. R.; ROSSOLENKO, A. N.; SIDOROV, N. S.; ZDRAVKOV, V. I.; RYAZANOV, V. V.; KLEMM, M.; HORN, S.; TIDECKS, R. (Springer Nature Switzerland, 2002)
    According to the crystal structure of MgB2 and band structure calculations, quasi-two-dimensional (2D) boron planes are responsible for the superconductivity. We report on critical-field and resistance measurements of ...
  • 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 ...
  • Influence of the FFLO-like state on the upper critical field of a superconductor/ferromagnet bilayer: Angular and temperature dependence 
    LENK, D.; HEMMIDA, M.; MORARI, R.; ZDRAVKOV, V. I.; ULLRICH, A.; MÜLLER, C.; SIDORENKO, A. S.; HORN, S.; TAGIROV, L. R.; LOIDL, A.; NIDDA Von, H.-A. KRUG; TIDECKS, R. (American Physical Society, 2016)
    We investigated the upper critical magnetic field,Hc, of a superconductor-ferromagnet (S/F)bilayer of Nb/Cu41Ni59and a Nb film (as reference). We obtained the dependence ofHc⊥andHc‖(perpendicular and parallel to ...
  • 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 ...
  • Interlayer interaction in Mo/Si superlattices in a normal and superconducting states 
    BUCHSTAB, E. I.; FOGEL, N. Ya.; SIDORENKO, A. S.; TIDECKS, R.; MOLDOVAN, O. B.; MIKHAILOV, M. Yu. (Elservier, 2002)
    The electronic interlayer interaction in superconducting Mo/Si multilayers was determined by measurements of the upper critical magnetic fields in the superconducting state, and of the magnetoconductivity in the normal ...
  • Magnetic state of Nb(1-7nm)/Cu30Ni70 (6nm) superlattices revealed by Polarized Neutron Reflectometry and SQUID magnetometry 
    KHAYDUKOV, Yu.; MORARI, R.; LENK, D.; ZDRAVKOV, V.; MERKEL, D. G.; SEIDLHOFER, B.-K.; MÜLLER, C.; NIDDA Von, H.-A. Krug; KELLER, T.; STEITZ, R.; SIDORENKO, A.; HORN, S.; TIDECKS, R.; KEIMER, B. (IOP Publishing, 2017)
    We report results of a magnetic characterization of [Cu30Ni70(6nm)/Nb(x)]20(x=1÷7nm) superlattices using Polarized Neutron Reflectometry (PNR) and SQUID magnetometry. The study has shown that the magnetic moment of the ...
  • 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 ...
  • Observation of an fcc–Co nanolayer grown between CoO and amorphous Si 
    LENK, D.; ULLRICH, A.; ZDRAVKOV, V. I.; MORARI, R.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R. (Springer Nature Switzerland, 2017)
    The thermodynamically crystallographic phase of Co at ambient conditions is hexagonal-close-packed. However, it has been found that given a crystallographic support from a suitable substrate, the high-temperature ...
  • Oscillations of the critical temperature in superconducting Nb/Ni bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; PREPELITSA, A. A.; HELBIG, C.; LUO, Y.; GSELL, S.; SCHRECK, M.; KLIMM, S.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 2003)
    We investigated Nb/Ni bilayers prepared by magnetron sputtering on glass subtrates. The quality of the films was characterized by small-angle X-ray diffraction analysis. The thickness of the layers was determined by the ...
  • Preparation of rare-earth manganite-oxide thin films by metalorganic aerosol deposition technique 
    MOSHNYAGA, V.; KHOROSHUN, I.; SIDORENKO, A.; PETRENKO, P.; WEIDINGER, A.; ZEITLER, M.; RAUSCHENBACH, B.; TIDECKS, R.; SAMWER, K. (American Institute of Physics, 1999)
    A chemical deposition technique based on the use of solutions of metal-chelate coordination compounds has been applied to prepare rare-earth–manganite-oxide thin films. La0.67 Ca0.33 MnO3 and La0.67 Sr0.33 MnO3 thin films ...

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